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  • Articles  (1,643)
  • Inorganic Chemistry  (1,458)
  • Life and Medical Sciences  (185)
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  • 1970-1974
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  • 1930-1934  (1,643)
  • 1933  (841)
  • 1932  (802)
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  • Articles  (1,643)
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  • 1970-1974
  • 1940-1944
  • 1935-1939
  • 1930-1934  (1,643)
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  • 1
    Electronic Resource
    Electronic Resource
    Masthead (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 53 (1932) 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1050530101
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  • 2
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    The histology of posterior regeneration in the polychaete Chaetopterus variopedatusThe material for this work was collected at the Woods Hole Marine Biological Laboratory during August, 1929; the subsequent work was completed in the Zoölogical Department, University of Chicago, Illinois, and the Anatomy Department, University of California, Berkeley, California. The author wishes to thank Dr. F. R. Lillie for his assistance. (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 53 (1932), S. 23-58 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: After amputation, the wound is closed by the protrusion and lateral expansion of the alimentary canal over the cut muscles and its final fusion with the epidermis laterally after about twenty-four hours. Associated with the expansion is a divergence of the two adjacent halves of the ventral nerve cord in the last remaining segment. As a result, the whole of the new regenerated lobe behind the ring of the cut epidermis is interneural; i.e., it is an enlargement of the normally small area separating the two nerve cords. Undifferentiated cells, or neuroblasts, are normally located interneurally, and during regeneration these neoblasts proliferate throughout the enlarged interneural zone of the papilla and migrate throughout the lobe. At first the neoblastic mesenchyme filling the lobe is loose and homogeneous, but as the cells settle down against the outer wall they replace the old intestinal cells and assume the characters of new epidermis. Internally, the mass acquires paired cavities, while the cells surrounding the cavities differentiate into muscle, peritoneum, etc. Thus one type of cell gives rise to the whole of the regenerated papilla. These cells are also the mother cells of the gametocytes.
    Additional Material: 16 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1050530103
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  • 3
    Electronic Resource
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    Some cytoplasmic structures in the male reproductive cells of a pseudoscorpion (Chelanops corticis) (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 53 (1932), S. 97-131 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The chondriosomes of the germinal epithelium are vesicular, whereas the Golgi material takes three forms. The aggregation of chondriosomes about the Golgi cap, located on the nucleus, suggests a chemical interchange between these in the growth period. They become cylindrical as the Golgi cap moves from the nucleus and becomes spherical. It is at this time joined by other Golgi material. The entire aggregation is dispersed previous to the maturation divisions, where the inclusions studied are only approximately equally divided, in contrast to conditions in the true scorpion, Centrurus exilicauda. Golgi granules on chondriosomal surfaces in the spermatid again suggest chemical interchange. The later changes of chondriosome vesicles to discs, and back to spheres, may be means of regulating chemical reaction. A close relation between chondriosomes and Golgi material is indicated by various bodies, of Golgi origin, within the former in the spermatid. A thick thread finally originates from among the chondriosomes of the elongated sperm. Spiral threads surrounding the elongating nucleus arise from reunited Golgi material, a derivative of this substance not previously recorded. The acrosome, also of Golgi origin, undergoes several changes in shape and shows several parts. The elongated nucleus, spiral thread of Golgi origin, acrosome, chondriosomal thread, and unusually long axial filament become coiled and encysted in an oval mature sperm capsule. In the female duct the sperm uncoils.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1050530105
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  • 4
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    Coordination of ciliary movement. II. The effect of temperature upon the ciliary wave lengthThe investigation has been made possible through funds granted by the Chemical Foundation and the National Research Council. (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 53 (1932), S. 265-276 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The ciliary wave length is a constant in the temperature range of 10° to 30°C. and in Modiolus demissus has the average value of 13.1 μ. Comparison of these data for ciliary coordination with those of nerve conduction probably indicates that the two physiological processes possess certain properties in common. The cells which bear the cilia are 12.75 μ long and the variation in ciliary wave length and cell length is about the same, which may indicate a possible cytophysiological relationship between the two.
    Additional Material: 2 Ill.
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    URL: http://dx.doi.org/10.1002/jmor.1050530204
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  • 5
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    Keimbahn determinants and continuity of the germ cells in Sphaerium striatinum (Lam.) (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 53 (1932), S. 345-365 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: During oogenesis granular mitochondria become concentrated in the proximal portion of the oocyte and remain concentrated in the line of cells that gives rise to the germ cells. Two cells of characteristic structure, appearing at gastrulation one on either side in the mesoderm, contain this mitochondrial cloud. All functional germ cells seem to be lineal descendants of these two primordial germ cells. The cloud disappears during gonad formation, but reappears in oocytes of the next generation. Except during meiosis and fertilization the germ-cell cycle is traceable from fertilized egg to sexual maturity. Details of meiosis and chromosome number were not ascertained.Capacity for producing germ cells in Sphaerium is traceable from a definite region in the egg to primordial germ cells through a localized cloud of mitochondria in the mature ovum and certain cells of cleavage stages. Mitochondria, therefore, serve as a Keimbahn determinant in the sense that they mark a region of oocyte cytoplasm destined for cytoplasm of primordial germ cells. They are not considered causal factors in production of germ cells, but are probably storage products persisting unused in the egg and in cleavage cells having lower metabolic rates. Disappearance of these mitochondria during gonad formation is explained by their dispersal among a number of cells and by their utilization in furnishing energy and material for production of new cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1050530207
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  • 6
    Electronic Resource
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    Masthead (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 53 (1932) 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1050530301
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  • 7
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    Polyploidy and metaphase patterns (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 53 (1932), S. 443-471 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: A cyst of tetraploid first spermatocyte metaphases is described in the coreid hemipter Archimerus alternatus (Say), all other divisions in the testis being of normal diploid constitution. The striking fact is that in spite of the doubling of their number the chromosomes closely follow the group pattern characteristic of the corresponding normal divisions. In the latter the first metaphase always shows a ring of six autosome bivalents with a single m-chromosome bivalent at its center and a single univalent X-chromosome lying outside the ring (as in coreids generally). In corresponding tetraploids the numbers are respectively 12, 2, and 2. Three additional interesting features of the tetraploids are: 1) the fact that the two m-bivalents are always lined up end to end to form an axial quadrivalent chain; 2) that although two X-chromosomes are present (as in the normal female), they are never united to form a bivalent as in that sex; and, 3) that in the prophases (of which a few are present in the cyst), at least one pycnotic X, or chromosome nucleolus, is present.A critical discussion is offered of the general problem of the mechanism of chromosome movements and groupings, together with a review of recent literature. The conclusion is urged that the chromosomes themselves play an active and important part in these processes, and the possible genetic relations between chromosomes and spindle substance are discussed.
    Additional Material: 24 Ill.
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    URL: http://dx.doi.org/10.1002/jmor.1050530302
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  • 8
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    Observations on the life history of a fingernail shell of the genus SphaeriumContribution from the Zoölogical Laboratory of the University of Illinois, no. 429. (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 53 (1932), S. 473-497 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: By statistical analysis and microscopical examination of a series of monthly quantitative collections, an attempt has been made to interpret the life history and reproductive habits of Sphaerium solidulum, one of the numerous species of the genus Sphaerium.Individuals of the species under observation have a distinctly limited life span of approximately one year. The period of maximum reproduction of this species does not occur in the summer months, as previously believed, but in the winter months. Seasonal growth rings are not present on this shell, although concentric lines are characteristic. No individuals of maximum size were present during the months from August to February. Maximum-size adults are apparently sterile. The analysis of distribution curves of each quantitative sample indicates two size groups in each collection as shown by the bimodal character of each graph. Distribution curves of embryos feature the bimodal character of the young and adult. The conclusions are founded on data secured from twelve monthly collections made from the same habitat totaling 7022 individuals.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1050530303
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  • 9
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    The embryology of amphioxus (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 54 (1932), S. 69-151 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Although the egg of Amphioxus is much more fluid and less stereotyped than that of Ascidians, the poles, axes, and localizations of formative materials are much the same in the two. The spermatozoon enters near the vegetative pole and a peripheral layer of granular cytoplasm flows to this pole and later forms a crescent around the posterior side parallel to the first cleavage amphiaster; this is the mesodermal crescent. On the anterior side a similar area later gives rise to the chorda-neural crescent. Above these crescents is the ectodermal area, below them the endodermal area. The early cleavages divide these crescents and areas just as in Ascidians. The coeloblastula is at first spherical, but later flattens in the region of the mesodermal crescent; this flattening extends forward on the vegetative side to the chorda-neural crescent, where the invagination is sharpest. The blastopore is at first triangular in outline, the dorsal lip being formed by the chorda-neural crescent and the lateral lips by the mesodermal crescent. Later the chorda and the mesodermal crescents are infolded, the lateral lips fuse to form the ventral lip which grows dorsalward, the blastopore becomes wider from right to left than dorsoventrally, the gastrula elongates and in the angles between dorsal and ventral lips the mesodermal crescent forms the mesodermal grooves in the lateral walls of the gastrocoel.
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  • 10
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    Observations upon the American representative of macrostomum tuba (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 54 (1932), S. 221-231 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: What appears to be a variety of Macrostomum tuba has been described in this paper. There is but a single retinula in each eye. This visual cell displays three regions: rhabdome, ellipsoid, and myoid, as does a vertebrate's retinula. Moreover, the accessory pigment associated with the retinula of M. tuba is applied to the rhabdome and not to the ellipsoid and myoid; this likewise is similar to the distribution of the pigment about the vertebrate's retinula. An analogy, therefore, may be drawn between the visual cell of the rhabdocoele and that of the vertebrate. This is so strong as to suggest homology. Several features peculiar to this variety are: first, the chitinous, distal ring of the penis; second, the fact that shell and yolk droplets seem to be elaborated by each cell destined to become an oocyte.
    Additional Material: 1 Ill.
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    URL: http://dx.doi.org/10.1002/jmor.1050540107
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  • 11
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    The structure of the testis and movement of sperms in chortophaga viridifasciata as demonstrated by intravitam techniqueA dissertation presented to the Faculty of Kansas University in partial fulfillment of the requirements for the Degree of Doctor of Philosophy.I wish to express sincere gratitude to my major professor, Dr. W. J. Baumgartner, for his continual assistance and efficient direction during the development of this work. His helpful encouragement and invaluable suggestions, as well as the kindly interest manifested by other members of the faculty, will keep me ever a debtor to the University of Kansas. (1933)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 54 (1933), S. 321-345 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: By means of the ‘intravitam technic’ developed by Baumgartner and Payne (1931), the mature or maturing sperm of Chortophaga viridifasciata have been traced from the follicle of the testes in the male to the locus of fertilization in the female. The sperm aggregated into bundles, and held tight by a hyaline cytoplasmic cap, spiral up the follicle, turn and spiral back to the vas deferens by means of a periodic lashing and writhing of the sperm tails.The genital tract is described briefly. In the vasa deferentia and storage tubules, the sperm bundles are usually in a quiescent state, having been inactivated most probably by secretions from the tubules.Peristalsis and currents in the fluid contents of the tubules move the inactivated sperm from the vesicles of the male to the seminal receptacle of the female, where the cytoplasmic caps gradually disintegrate. This permits individual sperm to pass down the seminal duct and fertilize the ovum just before oviposition.Single photomicrographs and a series of photomicrographs show the sperm in various parts of the genital system and making actual progress up a follicle. A stained preparation was used for only one of the photos. The other nineteen are from living unstained tissue. The intravitam observations are, most probably, more ‘vital’ than any heretofore recorded.
    Additional Material: 3 Ill.
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    URL: http://dx.doi.org/10.1002/jmor.1050540205
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  • 12
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    A comparison between the ultraviolet microscopy and the Feulgen staining of certain cells (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 53 (1932), S. 189-199 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: This paper describes ultraviolet (λ = 2750 A) photomicrographs of resting and dividing chicken macrophages and fibroblasts and of erythrocytes and lymphocytes. The structures found in these photographs are compared with the ones brought out in fixed material by Feulgen staining and found to be essentially similar in appearance. A preliminary series of ultraviolet pictures is also shown of a single fibroblast passing through several of its stages of division.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1050530107
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  • 13
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    Coordination of ciliary movement. I. Methods of study and the relation of ciliary coordination to ciliary inhibitionThe investigation has been made possible through funds granted by the Chemical Foundation and the National Research Council. (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 53 (1932), S. 243-263 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: A simply constructed apparatus, which includes a cinema camera, is described for the recording of ciliary movements. From data for Modiolus demissus obtained by this method, it is concluded that the coordinating impulse is a propagated impulse which regulates the temporal and spatial relationships of ciliary contractility, that this impulse has to a certain degree a determinant effect upon ciliary inhibitory influences so that the area rendered inactive is a multiple of the ciliary wave length, that the coordinating impulse is transmissible through cells bearing quiescent cilia, and that it may act as a stimulus of sufficient strength actually to cause quiescent cilia to become active.
    Additional Material: 2 Ill.
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    URL: http://dx.doi.org/10.1002/jmor.1050530203
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  • 14
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    Comments on the origin of the midgut in insects (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 53 (1932), S. 433-441 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Reviews the question of the origin of the midgut of insects with its diverse appearances and interpretations. Without doubt the midgut epithelium in some insects is derived from the lower layer, but in other insects from the tips of the stomodaeal and proctodaeal invaginations. The question of its origin seems to be “a function of the position within the whole,” and best understood from a standpoint of the time of determination of the parts involved. Maps illustrating the prospective significances of the principal types are included and discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1050530211
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  • 15
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    Studies on the life cycle of the snail, Viviparus contectoidesContributions from the Zoölogical Laboratory of the University of Illinois, no. 428. (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 53 (1932), S. 499-522 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: More than 3700 individuals of Viviparus contectoides from the Illinois River, near Peoria, Illinois, and from the Erie Canal in central New York, have been the subject of statistical and biological analysis as periodic quantitative samples to secure information on the life cycle. Sexes are easily distinguished through tentacular differences. Shells show marked sex dimorphism of size. Males reach a maximum height of 25 mm.; females may exceed 40 mm. Distribution curves, checked by experimental data on another species of the same genus, give evidence that males live normally about one year, while females may live three years. Differences in sex ratio are attributable to differences in life span and to changes in environmental factors producing aggregations of members of one sex.In central New York, the parturition period seems to begin to March and terminates in June. In central Illinois it extends from February into May. The uterus of a gravid female contains eggs, embryos, and shelled young in a graded series. At birth, the young shell contains one and one-half whorls and has a height of approximately 3.8 mm. Color bands are present on the shell three months before birth. Initial growth rate is extremely rapid. In less than three months the largest of the new generation are as large as the smallest of the parent generation. Graphs given show seasonal changes in the population.
    Additional Material: 10 Ill.
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    URL: http://dx.doi.org/10.1002/jmor.1050530304
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  • 16
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    The development of the prechordal plate and mesoderm of amblystoma punctatum (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 54 (1932), S. 1-67 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: This paper describes the development of the prechordal plate and mesoderm of Amblystoma punctatum from the late yolk-plug stage to the stage of about nineteen somites.In the earliest stage described the prechordal plate is embedded in the roof of the archenteron and flanked on both sides by prechordal mesoderm with which it is fused. The characteristics and limits of the prechordal plate and mesoderm are discussed and the fate of both traced. It is demonstrated that the mesodermal cores of the mandibular arches are probably largely derived from the prechordal mesoderm which flanks the prechordal plate. The prechordal plate is later separated out of the roof of the foregut in a caudocephalic direction, giving rise to a median mass of mesoderm which expands laterally independently of the mandibular portions of the prechordal mesoderm to give rise to head mesenchyme lying largely anterior to the level of the hyoid arch. The expansion of this mesoderm is followed in some detail.The boundary between prechordal and notochordal regions is placed at approximately the boundary between the mandibular and hyoid arches.The question of the interpretation of the prechordal region is briefly discussed.
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    URL: http://dx.doi.org/10.1002/jmor.1050540102
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  • 17
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    Masthead (1933)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 54 (1933) 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1050540201
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  • 18
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    A study of the Golgi elementsSubmitted from the Department of Zoology in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Graduate School of the University of Missouri, 1931. (1933)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 54 (1933), S. 259-301 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: This investigation was undertaken to determine some of the variables involved in the demonstration of the Golgi elements. Gland cells of vertebrates were studied vitally, after impregnation by osmic acid methods, and after autolysis.The duration of the staining period and the concentration of the stain condition the results obtained by vital staining with neutral red. The success of impregnation of Golgi elements with osmic acid varies with,(1) the type of tissue, (2) the time of initial fixation in relation to the time of the death of the animal, (3) the position of the cell in the piece of tissue, and, (4) the temperature of incubation with osmic acid. Stages in the impregnation of Golgi elements can be followed by examining preparations of the same tissue at frequent intervals during the incubation period. An increase in the amount of material which reduces osmic acid and which may form Golgi elements occurs in the cells during autolysis.The results are interpreted as indicating that Golgi elements are visible products of chemical reactions that occur in cells. They represent localized regions containing particular classes of chemical compounds which may be present, as such, in living cells or result from transformations in the cells during incubation. It is suggested that for the cells under consideration these substances may be unsaturated fatty acids.
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    URL: http://dx.doi.org/10.1002/jmor.1050540203
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  • 19
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    The architecture of the pectoral appendage of the dogfish (1933)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 54 (1933), S. 399-413 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The m. trapezius, with both brachial and branchial functions, is in seeming series with the mm. interarcuales laterales. The intrinsic muscles of the fin occur as a dorsal extensor sheet and three (or four) ventral flexor components. The spinal nerves, uncomplicated by extensive anastomoses, which supply the fin, clearly show that in the dogfish the fin muscles are derived not from dorsal and ventral elements, but from anterior and posterior, or protractor and retractor elements. The nerves prove that from the original protractor musculature only the anterior portion of the present flexor group is derived, while the original retractor musculature has become all of the extensor and the posterior part of the flexor series. Faradic stimulation of the live animal is satisfactory, although there is much variation in the sensitivity, particularly of different muscles.
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    URL: http://dx.doi.org/10.1002/jmor.1050540209
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  • 20
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    Observations on spermiogenesis in sciara coprophila (1933)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 54 (1933), S. 477-491 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The mitochondria in the male germ cells of Sciara exhibit peculiarities as regards both morphological characteristics and distribution. In form. they show superficial similarity with those of some of the scorpions, while their distribution may be peculiar to the genus and depend on unusual meiotic divisions.
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    URL: http://dx.doi.org/10.1002/jmor.1050540305
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  • 21
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    The anatomy and blood supply of the urogenital system of lepidosteus platystomus rafinesque (1933)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 54 (1933), S. 459-475 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: A description of the urogenital system in both sexes of Lepidosteus platystomus Rafinesque, and new observations on the blood supply to this system as well as to the rest of the viscera is given.The testes resemble the true piscine type. The sperm are carried by numerous vasa efferentia to the kidney tubules, through the mesonephros to the wolffian duct, and to the exterior as in the elasmobranchs and amphibians. The most anterior of the vasa efferentia are non-functional. The ovaries are simple sac-like structures continuous with their ducts. The oviducts transverse the ventro-lateral surface of the mesonephros, and enter into the dilated portions of the wolffian ducts, where they join, directly anterior to the urogenital aperture. There are no ducts in the male homologous with the oviducts of the female. The kidneys fused posteriorly, appear to extend the entire length of the body cavity, but the anterior third is non-urinary.By injection methods, the celiaco-mesenteric artery is shown to be crowded to the posterior end of the body cavity by the complicated swim-bladder, and runs anteriorly to supply the entire viscera. Its anterior portion is incorporated in the liver.
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    Masthead (1933)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 55 (1933) 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
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    URL: http://dx.doi.org/10.1002/jmor.1050550101
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    Musculature of the lacewing (chrysopa plorabunda) neuroptera (1933)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 55 (1933), S. 29-51 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: This article is an account of the complete musculature of an adult Neuropteran insect, Chrysopa plorabunda. Previous anatomical discussions on this order of insects include only a few of the muscles of the head and thoracic regions, while those of the abdomen are entirely lacking. The muscles here described include those of the head, thorax, and abdomen. The origin, insertion, and function of each muscle is given. The boundaries of several of the sclerites, especially those of the labium, are located by the observations on the musculature of these parts. The meso- and metathoracic wings are of the same size and for that reason the muscles of these regions are very much alike. The prothorax is greatly elonated, causing the muscles of that region to differ to a greater or less degree from the ‘general rule’ in insects. The abdominal muscles may be arranged in the several groups generally found in insects. In several cases, however, both the origin and insertion of the muscle have been shifted to accompany changes which have taken place in the abdominal segmentation. All of the muscles are shown in the four plates containing nineteen figures which accompany the text.
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    Some ultraviolet photomicrographs made with different wave lengths (1933)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 55 (1933), S. 131-135 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Photomicrographs have been made of grasshopper spermatocytes using ultraviolet light of several wave lengths. For studying chromosomes this wave length should be between ca 2800 A and ca 2500 A. With higher frequencies the entire cell becomes strongly absorbing and relatively little detail is to be seen. All cell structures, including the chromosomes, are as transparent to λ = 3500 A and to longer ultraviolet waves as they are to visible light. The present experiments do not indicate the exact point between λ = 3500 A and λ = 2800 A at which the selective chromatin absorption commences.
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    An embryological study of a special strain of deformed x-rayed mice, with special reference to the etiology and morphogenesis of the abnormalitiesContribution from the Zoölogical Laboratory of the University of Michigan. (1933)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 55 (1933), S. 151-183 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: This investigation consists of an extensive histological study of a special strain of abnormal x-rayed mice, in an attempt to determine the embryonic origin and development of certain congenital abnormalities that are hereditary.The study shows that development of the x-rayed strain is normal up to the thirteenth day after insemination, after which pathological structures appear in the form of blebs, hematomas, and thrombi. As a result of the formation of the blebs and hematomas a general condition is set up within the embryo which resembles that of thrombosis. The thrombi when formed exert a mechanical effect by crowding out the normal tissue. A chemical effect is also produced by the blood cells and fluid extravasated from the thrombus which penetrate into the forming tissues resulting in their perverted development. Thus the thrombi are the immediate factors causing the various regions of the body to be deformed.
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    Viviparity superimposed upon ovo-viviparity in the goodeidae, a family of cyprinodont teleost fishes of the Mexican Plateau (1933)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 55 (1933), S. 207-251 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The Goodeidae are a family of cyprinodonts containing about nine genera and twenty-six species. They are confined exclusively to the Mexican Plateau and to streams in the immediate vicinity. All are viviparous. Fertilization is internal. The eggs are extremely small and contain very little yolk. The embryos are retained in the ovarian follicles until the yolk is practically absorbed, in the meantime developing unique absorptive organs in the form of extensive ribbon-shaped proctodaeal processes. The embryos are evacuated into the intra-ovarian cavity where they are retained for several weeks, during which time the proctodaeal processes become extended. The ovary becomes a nutritive organ and produces secretions which are discharged into the intra-ovarian cavity and absorbed by the embryo through their unique processes. The processes differ in form, number, and histological structure, but are specific in their peculiarities for each species. These specific differences, together with marked differences in the ovary, will furnish a basis for a re-classification of the genera and species of the family. A comparison in made between this family and the other ovo-viviparous and viviparous cyprinodonts, on the basis of which it is concluded that the Goodeidae have arisen separately from an ovo-viviparous ancestor, which in turn was derived from an ovo-viviparous type. A comparison is also made between the peculiarities of reproduction in this family and those of other viviparous teleosts.
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    An experimental study of hemopoiesis in necturus: Effects of lead poisoning on normal and splenectomized animals (1933)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 55 (1933), S. 349-385 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Lead poisoning causes a selective destruction of mature erythrocytes, thereby depleting the spleen and stimulating differentiation and proliferation of erythrocytes in the blood. In conjunction with splenectomy, this intravascular erythropoiesis is markedly accelerated.During the progressive anemia and subsequent regeneration of erythrocytes in simple lead poisoning the major hemopoietic loci, spleen, mesonephros, liver, and epicardium were observed. The spleen is most rapidly affected. The red cell progenitor first present in the circulation is the hemoblast, but later numerous lymphocytes enter the blood stream and are transformed into erythrocytes.Following simple splenectomy the blood shows relatively little change. A mild regenerative activity of both erythrocytes and thrombocytes ensues. In lead poisoning after splenectomy the blood picture resembles that of simple lead poisoning. The anemia is produced more rapidly and the regeneration of erythrocytes is delayed.This study emphasizes the importance of the blood stream of Necturus as a site of red cell differentiation and proliferation, and shows that the lymphocyte may be a possible progenitor of erythrocytes and thrombocytes. Under normal conditions the hemoblast suffices as a source for red cells, but under abnormal or experimental conditions, where the demand for new cells is excessive and prolonged, the lymphocyte plays a major role.
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    A contribution to the embryology of sciara (diptera)I am greatly indebted to Dr. C. W. Metz for advice and helpful criticism and take this opportunity to express my gratitude to him. (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 54 (1932), S. 161-195 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
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    Morphogenesis of the brain (1933)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 54 (1933), S. 233-258 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The fundamental structure of the brain stem is uniform throughout the vertebrate series, not essentially because it expresses an architypical pattern, but because of the constancy of peripheral connections and their internal relationships, both of which are parts of an apparatus of adjustment to environment which is common to vertebrates. Other parts of the brain are more variable because, with complication of the behavior pattern in higher forms, more elaborate and diversified mechanisms of correlation and integration are requisite.The brain stem between the olfactory bulb and other primary sensory centers is plastic tissue not dominated by any single sensory-motor system; it is the meeting place of descending and ascending sensory paths. Here the chief apparatus of correlation and integration is elaborated. From it emerge the complex thalamic and cortical adjustors. The pallium is not a primary constituent of the vertebrate brain. The pallial type of organization gradually emerged from the more ancient subpallial type and comes to mature expression in the cerebral cortex. Several instructive stages in the progressive differentiation of cortical structure and connections are seen in the amphibian forebrain, but the process is not consummated. Amphibia have no cerebral cortex, though cortical primordia are evident here and in various fishes. Static concepts of architypes and the dialectic of ‘form-analytic’ argumentation are replaced by a more dynamic treatment of morphogenesis.
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    The inheritance of cataract in man, pedigree and interpretation (1933)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 54 (1933), S. 347-363 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: From a mating of first-cousins, of whom the female had cataract, there issued in four generations a progeny of 138 individuals, 33 of whom had cataract (23.8 per cent). Discounting the last generation, about which little is known, also discounting other unknown members, there were 29 known unaffected, 30 known affected, i.e., 50.8 per cent had cataract. The pedigree by generations shows that cataract is inherited as an autosomal (Mendelian) dominant. However, the mode of inheritance is atypical in that the defective gene for cataract may be borne, and is so borne because transmitted, without producing in the bearer its characteristic defect. In the second generation there were four of a family of nine with cataract; of the five without cataract two produced cataractous offspring and three did not marry. The literature is replete with pedigrees in which cataract is inherited as a typical autosomal dominant; there are a few pedigrees (four are reproduced) in which the mode of inheritance, while distinctly that of an autosomal dominant, resembles the present pedigree in being atypical. It is concluded that cataract is inherited as an autosomal dominant, but that in some cases it is produced only under certain conditions. These conditions are as yet not definitely known. Clinical writers seem to favor the view that nutritional and endocrine disturbances predispose to the realization of the defect.
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    An anatomical study of the furless condition in rabbits (1933)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 54 (1933), S. 365-388 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: A histological study of Hammond's simple recessive ‘furless’ rabbits was made from many series of sections taken from the skin of both the normal and furless rabbits of several pertinent ages.It was found that the external absence of under-hair or fur exists because of a failure of the hairs of these follicles to erupt. This failure is due to a premature keratinization which first affects the sebaceous glands and then the inner epithelial sheath. The resulting abnormal channel allows an erratic escape, especially of the regenerating hair above the incomplete inner sheath into the surrounding connective tissue, where the escaped part of the hair atrophies. The final condition shows an inflammatory reaction in the areolar tissue here. There is no check on the growth from the bulb of the root. Other elements of the skin verify this excessive keratinization.The cause of the abnormal metabolic changes conceivably lies in an inadequate tissue supply of oxygen or nutrition. The regulator may be the sympathetic system directly or indirectly (by hormone action), or it may be an inhibitor resident in the integument itself.
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    Histology of the fresh-water mussel heart with reference to its physiological reactionsThe writer wishes to express his obligation to the United States Bureau of Fisheries for the material used in these studies, and his indebtedness to Dr. M. M. Ellis for the helpful advice given during the course of these investigations. (1933)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 54 (1933), S. 415-427 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The anatomical isolation of the auricles from the ventricle in hearts of fresh-water mussels representing nine North American species has been confirmed. The muscle fibers in these hearts without exceptions were found to be of the smooth, unstriated type. Bundles of these fibers loosely interwoven, form the thin, delicate, heart wall, which contains many sinus-like spaces. The outside portion of the heart wall exposed to the pericardial fluid is covered with a definite epicardium composed of a single, dense layer of epithelial and scattering mucous cells. The inside of the heart cavity has no endocardium, the muscle fibers being in direct contact with the blood. No special conduction tissue, nerves or ganglia were found in the heart wall. Correlations of these anatomical and histological findings with the physiological reactions of the living heart in situ are made, and the mechanical and chemical control of the heart discussed.
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    A microscopical study of glochidial immunityContribution no. 170. Published by permission of the United States Commissioner of Fisheries. Acknowledgment is due the staff of the Fairport Biological Station for many helpful courtesies extended during the prosecution of this inquiry. (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 53 (1932), S. 367-379 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Glochidial cysts on the gills of immune fishes form in the same manner as normal ones, but they tend to grow larger and become more irregular. The increased thickness is due to additional cellular connective tissue in the wall. The gill tissue indicates the existing biological incompatibility only by the presence of eosinophiles, extruded chromatin spherules, and eosinophilic plastids.In natural, or racial immunity many glochidia are promptly destroyed by cytolysis, accompanied by an invasion of host cells. These disintegrating glochidia may occur in close proximity to unaffected glochidia and apparently are merely less resistant individuals that succumb to a critically adjusted reaction.In both natural and acquired immunity the normal retention of glochidia and the accompanying metamorphosis are replaced by premature shedding. After the first day, the cyst thins by the removal of stroma cells back into the filament until the wall is reduced to a thin envelope. Both intact and destroyed glochidia, and apparently their cyst coverings, are sloughed at about the second day. Repair of the resulting notched filament is prompt.
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    The effects of x-rays on regeneration in Tubifex TubifexThis investigation is one of the studies upon effects of radiation upon regeneration in progress in the department of Zoölogy at the University of Missouri, assisted by grants to W. C. Curtis from the Committee on Effects of Radiation of the National Research Council. (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 53 (1932), S. 389-431 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Posterior regeneration in Tubifex is inhibited by suitable radiation with x-rays. Only a small knob is formed at the cut surface by rearrangement of the terminal region of the old body tissues. Location of the cut within the segment and repeated removals of segments within the posterior three-fourths of the body do not change this result. The worms are as though ‘castrated’ against regeneration. Normal worms regenerate readily under similar conditions and replace lost segments within thirty-five days. Mesodermal tissues in normal regenerating Tubifex are formed from neoblasts, which arise from peritoneal cells upon the posterior faces of septa near the cut, migrate to this wound surface, and differentiate into new structures. After radiation no neoblasts arise from peritoneal cells and there is no mesodermal regeneration. No changes, other than failure to form neoblasts, can be observed in the peritoneal cells. Migrating neoblasts are destroyed within a few hours by similar radiation.Epithelial tissues are also affected by x-rays, as shown by absence of mitoses and failure of regeneration in ectodermal and endodermal epithelia. During normal regeneration cells which form these epithelia and certain muscle fibers arise by proliferation from the epidermis and intestinal lining in the regenerating region, as shown by numerous mitoses in these layers. Failure of regeneration in radiated worms is thus related to lack of cells which are present in normal regeneration.
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    A study of the cytoplasm in insect ova (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 53 (1932), S. 523-591 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The cytoplasm of the ova of ten species of insects, distributed among the Hemiptera, Coleoptera, Hymenoptera, Diptera, Orthoptera, and Neuroptera, has been studied. The Golgi bodies and chondriosomes were traced. They increase in number by fragmentation, but whether they may also arise de novo was not determined. They play no visible part in the formation of yolk or fat or any other structures or substances. Fat and yolk apparently arise independently in the cytoplasm. Vacuoles, which may stain with neutral red, may be present, but they are independent of the Golgi bodies. There is no vacuome in the sense in which Parat and others use the term. The Golgi bodies and chondriosomes are interpreted as substances rather than structures and as intermediate products of metabolism. Other bodies of unknown nature and function are present. The yolk nucleus of Gelastocoris is interpreted as a synthetic center.
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    Masthead (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 54 (1932) 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
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    Embryology and life history of chaetopleura apiculata (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 54 (1932), S. 153-160 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The breeding season of Chaetopleura apiculata begins about June 20th to June 25th and continues until about October 1st. Spawning takes place in the early evening, 8 to 11 O'clock. The cleavage and early development are strikingly similar to that of Ischnochiton as described by Heath, and is typically molluscan. The egg is enclosed in a bristly chorion from which it hatches after twenty-five to thirty hours. The larva is a large opaque trochophore which gradually transforms into a veliger larva by the development of the shell and foot. It settles to the bottom and metamorphoses into the adult form after six to ten days. It becomes sexually mature in one year and is full grown in three or four years, when it measures 29 × 18 mm. or less.
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    The spermatogenesis of the mouse (mus musculus, var. albula) (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 54 (1932), S. 197-220 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The previously reported diploid number of forty chromosomes has been verified; the sex chromosomes have been shown to exist early in the growth period and to be of the X-Y type; and a chromosome-nucleolus has been described in the resting stage of the primary spermatocytes which persists throughout synapsis and divides at the time of diakinesis into two parts that are equal in size and are thought to be the largest pair of autosomes. The diakinetic bivalents have been described rather fully. These are short and heavy and assume a great variety of shapes, the most characteristic of which are ring, V, Y, cross, and hexagonal. The union of bivalents during diakinesis has been shown to be an intimate one; in every instance first chromomere unites with first chromomere or third chromomere with third chromomere. This is considered to be significant evidence of the allelomorphism of chromomeres in mammals.
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    Insect development. IV. External morphology of grasshopper embryos of known age and with a known temperature history (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 53 (1932), S. 1-21 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Eggs of Melanoplus differentialis, a grasshopper, secured immediately after they had been laid, were placed in a water bath kept at 25°C, and allowed to develop for definite periods. After fixation, the embryos were dissected out of the eggs and drawn. Large numbers of eggs were examined in order to determine the degree of variation under specific conditions. For the stages following revolution, eggs were used in which ‘hibernation’ had been prevented by exposure to low temperatures.
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    Cytoplasmic structures in the ganglion cells of certain Orthoptera, with special reference to the Golgi bodies, mitochondria, ‘vacuome,’ intracellular trabeculae (trophospongium), and neurofibrillae (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 53 (1932), S. 59-95 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The Golgi bodies of the nerve cells of the grasshopper are discrete elements composed of an osmiophilic cortex and an osmiophobic medulla. When seen in face, they appear ring-like, semicircular, or crescentic. The osmiophilic portion is interpreted as the homologue of the classical Golgi apparatus and may under certain conditions be dissolved away, leaving clear spaces homologous to the canalicular apparatus (negative image of Golgi apparatus). When the osmiophilic portion is dissolved, the osmiophobic portion remains as a definite structure which apparently has no homologue in the classical Golgi apparatus. The mitochondria are granular, rod-like, or filamentous and show no transformation into Golgi bodies. Neutral-red bodies (‘vacuome’) of two kinds have been observed, neither of which is a constant preformed structure or has any relationship to the Golgi bodies. Prolongations of the capsule (trophospongium?) of the nerve cell penetrate into the cell approximately one-third the distance to the nucleus. These are interpreted as supportive rather than nutritive in function. A basket-like net of neurofibrillae surrounds the nucleus. It is suggested that the networks described as Golgi apparatus in certain invertebrate nerve cells may really consist of these neurofibrillae.The conclusion of Parat that Golgi material consists either of mitochondria or ‘vacuome’ is rejected. The idea that all structures in the living cell which stain with neutral red (‘vacuome’) are homologous is also rejected.
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    The nutrition of glochidia during metamorphosis. A microscopical study of the sources and manner of utilization of the nutritive substancesContribution no. 166. Published by permission of the United States Commissioner of Fisheries. Acknowledgment is due the staff of the Fairport Biological Station for many helpful courtesies extended during the prosecution of this inquiry. A preliminary report appears in the proceedings of the American Society of Zoölogists (Arey, '23 a). (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 53 (1932), S. 201-221 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Part of the nutriment of metamorphosing glochidia is supplied by the cellular host tissue, bitten by the larvae during attachment. Some of this is taken up piecemeal by the mantle cells and digested intracellularly. The coarse granules that first pack the mantle cells are apparently the precursors of a digestive secretion, some of which escapes into the mantle cavity. Here it also causes the prompt dissolution of additional utilizable host tissue.Another source of nutriment is furnished by the provisional larval adductor muscle which undergoes degenerative changes in situ, then fragments, and finally is carried away bit by bit by amoeboid cells. These turn over their muscle content to the larval mantle, where the particles are further reduced beyond recognition. The mantle remnant itself is finally sacrificed and doubtless becomes an additional source of nutriment.The gut serves as an organ of nutrition throughout the last two-thirds of the parasitic period. It appears to admit and digest pieces of the adductor muscle and certain unidentified particulate matter. In addition, the gut, like the definitive mantle and other organs, doubtless absorbs tissue transudate from the host.Special vascularization of the host tissue to facilitate the passage of nutriment from host to parasite does not occur, yet there is no reason to doubt that an appreciable part of the larval nutrition results from transuding tissue juices.
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    A topographical and cytological study of the sympathetic nervous components of the suprarenal of the chick embryoThis work was done largely at the Zoölogical laboratory of the University of Kentucky during 1929 and 1930. It was completed during the author's leave of absence from the University of Kentucky, while in residence at The University of Chicago, 1930 and 1931. (1932)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 53 (1932), S. 277-325 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: A study was made of the development of the suprarenal gland of the chick with reference to the following points: 1) Topographical relationship of the sympathetic cell masses to the cortical cords, and to the sympathetic nervous system. 2) Cytological differentiation of the sympathetic cells.The migrating indifferent sympathetic cells, although becoming generally distributed over the medial surface of the cortical ridge, form a series of more prominent aggregations at certain definite loci. These aggregations are the rudiments of two longitudinal ganglionic chains, which develop from the sixth to the seventh day. Around and between the ganglionic rudiments the indifferent cell groups become penetrated by sympathetic fibers from the ganglionic rudiments as well as by fibers of sympathoblasts which develop from indifferent cells of the sympathetic-chromaffine complex. At the same time multipolar sympathetic cells lying between the cortical cords and processes to the tracts developing between the ganglia on the surface of the cortical ridge.Differentiation of ‘chromaffine cells’ from indifferent cells of the aggregations begins during the eighth day, after a profuse innervation of the rudiments has been established. Differentiation is evidenced by the appearance of cytoplasmic granules, and by the appearance of the ‘chromaffine reaction.’ The possible bearing of the innervation of the indifferent cell aggregations upon their differentiation and upon their penetration of the cortical bodies is discussed.
    Additional Material: 5 Ill.
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    URL: http://dx.doi.org/10.1002/jmor.1050530205
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    The effects of X-rays on anterior regeneration in tubifex tubifexThis study was made during 1931-32 at the zoölogical laboratories of the University of Missouri and the University of Pennsylvania, while on appointment as a National Research Council Fellow. It is in continuation of previous work at the University of Missouri supported in part by the Committee on Radiation of the National Research Council. (1933)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 54 (1933), S. 303-320 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Observations of earlier workers concerning the limited region from which anterior regeneration will occur in Tubifex and the reduced number of segments formed were confirmed in control worms used in these experiments. Only three anterior segments are replaced when as many as twelve are removed. Regeneration is completed within 18 days.Removal of anterior segments from worms that have received 9000 (r) units exposure to x-rays is not followed by regeneration. The wound heals rapidly and worms have been kept in laboratory 70 days without further change. Longitudinal sect ons of injured ends show that the epidermis and muscle layers extend across the wound surface to completely close the body cavity. The intestine retracts slightly and heals to form a blind tube. No mitotic figures appear in cells of this region and there is no evidence of regeneration.In control worms material for formation of the cerebral ganglia and new epidermis arises by proliferation of epidermal cells. The new pharynx arises from the region of the old intestine adjacent to the wound surface. The muscle layers of the body wall and pharynx in new segments are apparently formed by migration of cells from the old muscle elements about the margin of the wound area. No neoblasts were observed in anterior migration or in the process of formation upon adjacent septa in any of the worms.
    Additional Material: 8 Ill.
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    Masthead (1933)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 54 (1933) 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1050540301
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    The rudimentary copulatory organ of the domestic fowl (1933)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 54 (1933), S. 429-449 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The rudimentary copulatory organ of chickens was first observed as a phallic knob in 6-day embryos. This phallic knob enlarged similarly in both male and female embryos up to the twelfth day: from the twelfth to the seventeenth day it was distinguished by a large process in the males and a diminishing process in the females. Further differentiation took place from the eighteenth to the twenty-first days: some females lacked the porcess, others retained a smaller process than that of the male. As growth advance, fewer females retained the process until at 12 weeks of age it had entirely disappeared. The process was found in all males and showed no retrogression, whereas the few capons examined lacked it. A ridge-shaped ‘pseudo’ process developed at about 1 week in some females and was present up to 3 weeks of age. Histologically and embryologically, the process was seen to possess some characteristics of a penis. The cloacal method of sex determination might be used with an average maximum accuracy of about 90 per cent in living day-old chicks.
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    Sex cycles and other cyclic phenomena in a chimpanzee during adolescence, maturity, and pregnancy (1933)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 54 (1933), S. 521-547 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The sex cycles of a chimpanzee were studied for 18 months, during which the animal matured, menstruated four times, conceived, and delivered.Pronounced swelling of the ano-genital region appeared periodically prior to the first menstruation. During menstrual cycles the swelling endured during most of the period between flows. Genital swelling was always accompanied by estrus; copulation and insemination never occurred during its absence.The animal was alert and active when in estrus, demonstrated non-sexual affection for the male just prior to the flow, and appeared to be physically distressed during the first days of each flow.There were periodic weight changes coordinated with the animal's menstrual cycles.During pregnancy menstruation ceased, but genital swelling, with accompanying sexual receptivity, continued in irregular cycles.Cyclic changes in the desquamation of the vaginal epithelium occurred during menstrual cycles, were absent during pregnancy.The gestation period was approximately 246 days. At death from puerperal sepsis, 15 days after delivery, the ovaries were in a restin stage, one of them bearing a degenerating corpus luteum.The evidence given indicates that sex-skin swelling and estrus are similarly controlled, but may occur independently of menstruation, cornification of the vaginal epithelium, or ovulation.
    Additional Material: 4 Ill.
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    The genitalia of the Indian mollusk Indoplanorbis exustusContribution from the Museum of Natural History, University of Illinois, No. 71. (1933)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 55 (1933), S. 1-13 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The molluscan genus Indoplanorbis is shown to differ markedly from all other members of the family Planorbidae in the generative complex, the vas deferens being encased in a long, flexible tube in which it is freely movable. The preputium of the male complex is shown to be completely evertible from the male opening and to act as a male copulatory organ. The presence of a single, heavy penial retractor innervated by an equally strong nerve is indicated. Comparisons are made with the genitalia of the European Coretus and the American Helisoma showing fundamental differences in the generative apparatus of the three groups. Indoplanorbis is most closely related to Coretus, the vas deferens of that group being also encased in a tube. Helisoma differs from both of these genera, the vas deferens not being encased in a tube and is of the same diameter throughout its length.
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    The blood cells of the trematode diplodiscus temperatus (1933)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 55 (1933), S. 119-129 
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    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The vascular channels and sinuses of this trematode contain three varieties of cells: eosinophilic granulocytes, primitive hemocytoblasts (‘amebocytes’), and modified hemocytoblasts. The latter suggest a specialized blood corpuscle, but represent apparently only a stage in the dissolution of intravascular hemocytoblasts. These ‘corpuscles’ have the form of flattened lenticular discs, approximately 12 μ in diameter. The eosinophils differentiate extravascularly from hemocytoblasts. The hemocytoblasts are in part free parenchymal cells, in part they arise from a bilaterally paired ‘lymphogenous organ’ or ‘blood island’ associated with the lateral vascular channels at the level where the ceca diverge from the esophagus.
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    Eine neue Art komplexer Platinverbindungen Drei- und fünfwertiges Platin. IV (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 203 (1932), S. 401-404 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19322030134
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    Druckfehlerberichtigung zur III. Mitteilung (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 204 (1932), S. 231-231 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: No. Abstract.
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    URL: http://dx.doi.org/10.1002/zaac.19322040303
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    Masthead (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 204 (1932) 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19322040401
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    Untersuchungen über Dynamik und Katalyse der thermischen Bicarbonatzersetzung. IV. Mitteilung Versuche über Katalyse des thermischen Ca(HCO3)2. Zerfalls (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 204 (1932), S. 365-377 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wurde der Einfluß von molekulardispersen und kolloiden Lösungsgenossen, sowie von grobdispersen Zusätzen auf die thermische Zersetzung einer 0,005 n-Ca(HCO3)2-Lösung untersucht.
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    Innerkomplexe Verbindungen des fünfwertigen Niobs und Tantals (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 204 (1932), S. 342-350 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    URL: http://dx.doi.org/10.1002/zaac.19322040403
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    Fritz Foerster und sein Werk (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 204 (1932), S. 1-20 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    URL: http://dx.doi.org/10.1002/zaac.19322040102
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    Über den Oxydgehalt des Aluminiums und Methoden zu seiner Bestimmung. Bemerkungen zu der gleichnamigen Arbeit von H. Löwenstein (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 204 (1932), S. 40-40 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19322040106
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    Härte, Mikrostruktur und Temperaturkoeffizient des elektrischen Widerstandes der Eisenplatinlegierungen (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 204 (1932), S. 49-59 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 8 Ill.
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    URL: http://dx.doi.org/10.1002/zaac.19322040108
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    Die Bildungswärmen der Nitride. Die Azotierungswärmen von Lithium, Aluminium, Beryllium und Magnesium (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 204 (1932), S. 81-96 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 13 Tab.
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    URL: http://dx.doi.org/10.1002/zaac.19322040111
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    Zur Zersetzung der Dithionate (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 204 (1932), S. 143-144 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
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    URL: http://dx.doi.org/10.1002/zaac.19322040114
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    Über die Zersetzungsdrucke kristallisierter Hydroxyde, insbesondere von Aluminium und Beryllium (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 205 (1932), S. 287-308 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Folgende kristallisierte Hydroxyde wurden isobar bei PH2O = 100 mm Hg unter röntgenographischer Kontrolle der Entwässerungsprodukte verschiedensten Grades abgebaut; Hydrargillit, Bayerit, Böhmit, Diaspor, stabil und metastabil kristallisiertes Be(OB)2. Trotz Verwendung kleinster Druckräume (0,3-0,8 cm3) und feinster Zerteilung der Präparate dauerte die Einstellung konstanter Drucke sehr lange (Wochen bis Monate). Die erhaltenen Zersetzungstemperaturen lagen alle erheblich unter den bisher in der Literatur mitgeteilten, stets vie1 schneller bestimmten Werten. Auch stimmen die aus den bisherigen Literaturwerten sich ergebenden Stabilitätsreihenfolgen in einigen Fällen nicht mit unseren Resultaten überein, und zwar da, wo die früheren Resultate auch den Befunden von Löslichkeits-, Umwandlungs- und kalorimetrischen Versuchen widersprechen.
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    Über die Valenzverhältnisse der Halogenide der dritten, vierten und fünften Gruppe des periodischen Systems (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 205 (1932), S. 309-320 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19322050311
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    Masthead (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 205 (1932) 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19322050401
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    Untersuchungen über Calciumaluminate. II. Die Kristallisation der Calciumaluminatlösungen bei 40° C (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 205 (1932), S. 335-360 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Aus den Lösungen, die durch Mischung aus frisch bereiteten Calciumaluminatlösungen und Kalkwasser hergestellt werden, kristallisieren Bodenkörper, die optisch und analytisch untersucht worden sind.
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    Keto-enoltautomerie als Polymorphiemodell (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 205 (1932), S. 414-416 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    URL: http://dx.doi.org/10.1002/zaac.19322050408
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    Die Kristallstruktur des β-Zirkons (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 205 (1932), S. 81-86 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Kristallstruktur der oberhalb 862°C stabilen β-Modifikation des Zirkons wurde röntgenographisch festgelegt. Sie ist kubisch-raumzentriert mit zwei Atomen in einer Elementarzelle mit Kante a =3,61 Å bei einer Temperatur wenig oberhalb des Übergangspunktes. Eine Röntgenkamera für die Herstellung von Drehaufnahmen von im Vakuum oder in einem beliebigen Gas glühenden Drähten wird beschrieben.
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    Die Affinität von Metallen zu Schwefel. II Mitteilung. Thermische Dissoziationsgleichgewichte der Sulfide von Silber, Kupfer und Arsen (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 205 (1932), S. 95-112 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Mit einem neuen (direkten) Verfahren zur Untersuchung der Gleichgewichte von Metallsulfiden mit Wasserstoff wurden Versuche zur Bestimmung des Gleichgewichts zwischen Wasserstoff und Silbersulfid ausgeführt und die Dissoziationsspannungen, maximale Arbeit und Wärmeeffekt der Bildung von Ag2S im Temperaturbereiche 912° bis 1067°C berechnet.
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    Über das Verhalten des Poloniums bei der Kristallisation von Metallen (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 205 (1932), S. 145-162 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Das Polonium ist vor anderen Metallen ausgezeichnet durch Seine geringe Neigung zu Mischkristallbildung. Seine gesättigten Mischkristalle enthalten nur 2,31 · 10-11 bis 5,28 · 10-10 % Po.
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    Masthead (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 206 (1932) 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19322060101
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    Eine elektrometrische Methode zur Bestimmung von Unterphosphorsäure (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 206 (1932), S. 125-128 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
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    URL: http://dx.doi.org/10.1002/zaac.19322060113
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    Gleichgewichtsuntersuchungen über die Reduktions-, Oxydations- und Kohlungsvorgänge beim Eisen. XI (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 206 (1932), S. 129-151 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 9 Ill.
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    URL: http://dx.doi.org/10.1002/zaac.19322060202
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    Photosynthese im tropischen Sonnenlicht. V. Reduktion von Kohlensäure, Bicarbonaten und Carbonaten (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 206 (1932), S. 171-173 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. Kohlensäure, Carbonate und Bicarbonate konnten zu Formaldehyd reduziert werden unter Anwendung von Magnesium, Zink und Ferrocarbonat. Mit Magnesium und Zink ist die Ausbeute im Licht beträchtlich höher als im Dunkeln. Magnesiumpulver erwies sich als das beste Reduktionsmittel.
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    Die Benetzungswärmen von Kohle und Silikagel in Mischungen von Wasser und Essigsäureanhydrid (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 206 (1932), S. 174-176 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
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    URL: http://dx.doi.org/10.1002/zaac.19322060206
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    Hydrothermale Synthesen von Calciumsilikaten (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 206 (1932), S. 177-195 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 19 Tab.
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    URL: http://dx.doi.org/10.1002/zaac.19322060207
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    Die Neutralsalzwirkung der Ferri-Jodionenreaktion. 3. Über den Einfluß von Nichtelektrolyten auf die Geschwindigkeit der Reaktion (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 206 (1932), S. 196-208 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wird gezeigt, daß die Ferri-Jodionenreaktion auch in Gegen-wart von Nichtelektrolyten trimolekular (bimolekular für die Jodionen und monomolekular für die Ferriionen) vor sich geht.
    Additional Material: 24 Tab.
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    Über Silberferrite. V. Mitteilung. Der Alterungsprozeß des Orthoferrihydroxyds und die Konstitution des Goethits (α-FeOOH) (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 206 (1932), S. 328-336 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Der Alterungsprozeß des Orthoferrihydroxyds wird als ein chemischer Vorgang beschrieben, mit dem zugleich kolloidchemische Veränderungen stattfinden. Die „amorphe“ und die kristallisierte eisenige Säure (γ-FeOOH) wurden näher untersucht, sowie einige Silberferrite durch ihre ferromagnetischen Eigenschaften zeichnet. Es wurden Angaben über die Konstitution und das Molekulargewicht des Goethits (α-FeOOH) gemacht.
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    URL: http://dx.doi.org/10.1002/zaac.19322060314
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    Über die Hydrazinate einiger Silbersalze (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 206 (1932), S. 369-377 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
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    URL: http://dx.doi.org/10.1002/zaac.19322060405
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    Über die Wirkung von Rhodaniden auf Mercurosalze (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 205 (1932), S. 235-240 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Bei Einwirkung der Rhodanide auf Mercurosalze findet eine quantitative Ausscheidung des Quecksilbers statt, welche nach folgendem Schema vor sich geht: .
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    URL: http://dx.doi.org/10.1002/zaac.19322050304
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    Einfluß verschiedener Stoffe auf die Peptisation von Ferriarsenat, -phosphat, -wolframat und -molybdat durch Ferrichlorid (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 205 (1932), S. 241-250 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Niederschläge von Ferriarsenat, -phosphat, -wolframat und-molybdat werden in merklichem Umfang durch Ferrichlorid peptisiert, wobei positiv geladene Sole dieser Stoffe erhalten werden.
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    Zur Konstitution von Pyrosulfaten, Pyroschwefelsäure und Monohydrat. Bemerkungen zur Arbeit von A. Hantzsch: „Über Säurehydrate und Hydroxoniumsalze“ (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 207 (1932), S. 111-112 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19322070111
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    Masthead (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 207 (1932) 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19322070201
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    Über die Bildungswärmen der Nitride. III. Die Lösungswärmen einiger Metalle und Metallnitride in Säuren (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 207 (1932), S. 133-144 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wurden die Lösungswärmen folgender Metalle und Nitride in Säuren bestimmt: in H2SO4 (1:12,7), Mn5N2, in HC1 (1:20) Cr, Mg, Mg3N2, Ce, CeN, La, LaN. Die Lösungswärme des Chroms konnte infolge der Komplexsalzbildung nur angenähert festgelegt werden. Die gefundenen Werte und die daraus berechneten Bildungswärmen der Nitride gibt die folgende Zusammenstellung: TextMetallLsgs.-W. des Me Cal/g-AtomL.-W. des Nitrids Cal/MolBildungswärme des Nitrids Cal/N2Mn-278,93 ± 1,4456,82Cr(50,6 ± 1,7)--Mg111,99 ± 0,14284,79 ± 0,87115,18Ce165,15 ± 0,16119,17 ± 0,23156,00La167,72 ± 0,31127,06 ± 0,18145,36
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    URL: http://dx.doi.org/10.1002/zaac.19322070203
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    Beiträge zur Kenntnis der Verbindungen des Galliums und Indiums. V. Die Eigenschaften der Galliumtrihalogenide (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 207 (1932), S. 161-174 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. ES werden die Galliumtrihalogenide dargestellt und Schmelz- und Siedepunkte, Dichten im festen und geschmolzenen Zustand, Ausdehnungskoeffizienten und Leitfähigkeiten der Schmelzen bestimmt.
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    Löslichkeitsbestimmung in verflüssigten Gasen. Mitteilung I: Die Löslichkeit von Kaliumnitrat in verflüssigtem Ammoniak (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 207 (1932), S. 204-208 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. Es wurde das Verfahren von RUFF zur Bestimmung der Löslichkeit von festen Stoffen in verflüssigten Salzen geprüft und verfeinert.
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    URL: http://dx.doi.org/10.1002/zaac.19322070211
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    Aktive Oxyde. LI. Die Hydrate, Methanolate und Pyridinate des Zinkoxalats (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 207 (1932), S. 225-233 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
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    URL: http://dx.doi.org/10.1002/zaac.19322070302
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    Zur Frage der osmotischen (permutoiden) Bindung des Wassers in Oxydhydraten und ähnlichen Verbindungen (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 207 (1932), S. 257-267 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Um die Natur komplizierter Systeme zu erforschen, hat man stets Analogien zu den Gesetzmäßigkeiten einfacherer und theoretisch besser durchsichtiger Systeme gesucht und aus dem Grad der Annäherung an diese Gesetzmäßigkeiten Schlüsse gezogen. Für die vorliegenden Systeme war die formale Analogie zu den ideal verdünnten Lösungen so einleuchtend, daß dies HÜTTIG bewog, die Gesetzmäßigkeiten der letzteren in den Vordergrund zu stellen. Es ist im vorangegangenen gezeigt worden, daß einmal die Voraussetzungen für die Gültigkeit der idealen osmotischen Gesetze in diesen Systemen nicht gegeben sind, daß aber die an den von HÜTTIG charakterisierten Systemen gewonnenen experimentellen Ergebnisse in Analogie stehen zu den Erfahrungen an kondensierten idealen Gemischen, eine Betrachtungsweise, die gleichzeitig ein wichtiges Charakteristikum für die osmotischen Systeme, wenigstens für deren Idealfälle (K = 1) liefert. (Die Analogie zu den quellbaren Gelen, denen sie ihrem äußeren Habitus entsprechend am nächsten stehen, ließ sich wegen der ungenügenden Kenntnis von deren Gesetzmäßigkeiten nicht durchführen.)
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    Masthead (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 207 (1932) 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19322070401
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    Untersuchungen über Dynamik und Katalyse der thermischen Bicarbonatzersetzung in wäßriger Lösung. VII. Mitteilung. Der Bicarbonatzerfall in siedenden Calcium-, Strontium- und Bariumbicarbonatlösungen (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 208 (1932), S. 46-52 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. Die Zersetzungsversuche an 0,0025, 0,005 und 0,010 n-Ca(HCO3)2-, Sr(HCO3)2- und Ba(HCO3)2-Lösungen im und ohne Gasstrom ergaben übereinstimmend die Reihenfolge fallender Zerfallsgeschwindigkeiten: Sr(HCO3)2, Ca(HCO3)2, Ba(HCO3)2, die mit der Reihenfolge steigender Löslichkeit der entsprechenden Carbonate übereinstimmt.
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    URL: http://dx.doi.org/10.1002/zaac.19322080106
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    Gleichgewicht im System (NH4)2SO4—Th(SO4)2—H2O (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 208 (1932), S. 95-99 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19322080112
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    Optische Untersuchung zur Reaktion von Polyhydroxyden mit Schweizer's Reagens (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 207 (1932), S. 217-224 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Mittels Absorptionsmessungen im Sichtbaren wird die Reaktion von Polyhydroxyverbindungen mit SCHWEIZER's Reagens bzw. Kupferdiäthylendiamin-hydroxyd daraufhin geprüft, ob sie nach der bisher üblichen Formulierung : oder einfacher nach der Gleichung (2) erfolgt:
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    URL: http://dx.doi.org/10.1002/zaac.19322070213
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    Röst- und Reduktionsverhalten von Spateisensteinen (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 207 (1932), S. 246-250 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 4 Ill.
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    URL: http://dx.doi.org/10.1002/zaac.19322070305
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    Über Nichtmetall-Halogenverbindungen. III. Sättigungsdrucke des Bortrifluorids (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 207 (1932), S. 242-245 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Bortrifluorid wird nach verschiedenen Verfahren rein dargestellt, Sättigungsdrucke werden gemessen, Schmelz- und Siedepunkt bestimmt. Die flüchtige Verbindung BF3·HCN wird beschrieben und durch Dissoziationsdrucke charakterisiert.
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    Die Bestimmung des Indiums und Galliums mit 8-Oxychinolin (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 209 (1932), S. 129-138 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Indium und Gallium können durch Fällung mit 8-Oxychinolin bestimmt werden. Infolge der günstigen chemischen und mechanischen Eigenschaften der Niederschläge sind die auftretenden Fehler gering und die Bestimmungsmethode ist der üblichen Fällung als Hydroxyd überlegen.
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    URL: http://dx.doi.org/10.1002/zaac.19322090204
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    Zur Konstitution und Reaktion von organischen und besonders von tautomeren Verbindungen (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 209 (1932), S. 213-224 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Tautomere Stoffe, d. h. solche, die mit anderen Stoffen isomere Reaktionsprodukte (meist Alkyl- oder Acylderivate) erzeugen, sind nicht, wie noch jetzt vielfach angenommen wird, im festen Zustand inhomogene Gleichgewichte. Solche Gleichgewichte bestehen allerdings bisweilen im flüssigen und noch häufiger im gelösten Zustand, aber stets nur bei Wasserstoffverbindungen durch Wanderung dieses beweglichsten Atoms zwischen Sauerstoff und Stickstoff, niemals aber bei Alkaliverbindungen, die stets nur Sauerstoffsalze bilden, auch wenn letztere nicht O-Ester, sondern C- oder N-Alkylderivate erzeugen. Isomere Salze bilden nur einige Schwermetalle, wie Quecksilber. Kohlenstoffsalze und Stickstoffsalze der Alkalimetalle mit den Gruppen KC—NO2 und KN—CO sind nicht bekannt; ihre Nichtexistenz darf daher angenommen werden; ebensowenig darf aus der Existenz ihrer Alkylderivate mit den Gruppen CH3C—NO2 und CH3N—CO auf die Existenz dieser Kohlenstoff- bzw. Stickstoffsalze geschlossen werden.
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    URL: http://dx.doi.org/10.1002/zaac.19322090209
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    Die Bildungswärmen von Halogenidphosphinen. 3. Mitteilung über Phosphoniakate (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 209 (1932), S. 241-248 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Bildungswärme der Phosphine von Halogeniden des Ti, Sn und Al wird kalorimetrisch gemessen durch direkte Bestimmung der bei der Reaktion Halogenid + PH3 = Phosphin frei werdenden Wärme. Das Kalorimeter ist so eingerichtet, daß es für Messungen zwischen -20° und +70° geeignet ist. Die erhaltenen Bildungswärmen werden miteinander und mit denen der Thiohydrate verglichen. Die Phosphine sind in allen Fällen stabiler als die entsprechenden Thiohydrate. Der Unterschied zwischen beiden Stoffklassen ist um so größer, je stärker polarisierend das Kation des Halogenids wirkt.
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    Beiträge zur Chemie des Germaniums. XI. Mitteilung. Trichlormonogerman und Germaniumoxychlorid (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 209 (1932), S. 273-276 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
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    URL: http://dx.doi.org/10.1002/zaac.19322090309
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    Über Legierungen des Palladiums mit Eisen (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 209 (1932), S. 295-307 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 9 Ill.
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    URL: http://dx.doi.org/10.1002/zaac.19322090313
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    Über die Endpunktsverschiebung bei der Titration von Borsäure- und Mannit-Borsäure-Lösungen (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 208 (1932), S. 213-216 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19322080211
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    Über den Verlauf der Reaktion im festen Zustande zwischen Kalk und Kieselsäure (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 209 (1932), S. 409-428 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Gesamtheit der angestellten Beobachtungen und Versuchsbrände ergibt folgendes Bild der Mineralentstehung aus trockenen Gemengen der Zusammensetzung 1 CaO : 1 SiO2.
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    URL: http://dx.doi.org/10.1002/zaac.19322090409
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    Über Legierungen des Platins mit Kupfer (1933)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 210 (1933), S. 1-12 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19332100102
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  • 99
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    Über Legierungen des Platins mit Nickel (1933)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 210 (1933), S. 13-20 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19332100103
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  • 100
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    Die Zustandsdiagramme einiger Lithiumsalzschmelzen (1933)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 210 (1933), S. 163-163 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19332100207
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