ALBERT

Description: Er zijn verschillende redenen om te veronderstellen, dat het grondgebied, dat men thans Nederland noemt, in het Pleistoceen bewoond was. Zowel in het Noorden als in het Zuiden zijn artefacten gevonden, die beschouwd worden als te behoren tot palaeolithische culturen.

Description: Some years ago we received a collection of foraminifera-bearing samples from Dr. H. K. Kugler and Dr. E. Lehner for examination, in sequence to the collection of larger foraminifera already examined from Central Falcon (Venezuela). (See Nettie E. Gorter and I. M. van der Vlerk, L.G.M., Dl. IV, afl. 2, 1932, p. 94—122). The material from Trinidad is very rich in representatives of the Orbitoididae family. On a closer study of the different genera of this family, for which the large collection of Indian and European Orbitoididae in the National Geological Museum in Leiden provided ample material, we observed that for the determination of genus the interlocular canalsystem is the most important feature. In the Orbitoididae the plasma is conveyed through the equatorial plane by means of canals and stolons. The first complete description of this was given by H. J. Carter in the Annals of Nat. Hist., 3rd series, vol. VIII, p. 449—453. In this article he remarks that in Orbitoides there are always four stolons to each chamber, while in infiltrated specimens of Orbitolites (= Lepidocyclina) mantelli, he sometimes found ever 6. C. W. Gümbel, Abh. k. bayer. Ak. W., II, Cl, X, Bd. II, 1868, p. 673, pointed out that these stolons formed a system, which he calls an interlocular canalsystem in analogy to the „interseptal canalsystem” which runs through the septa of the chambers in most foraminifera, but which is absent in the Orbitoididae. To avoid confusion with this interseptal canalsystem which in the literature is called simply canalsystem, we thought it better to use the expression „stolonsystem” here. It now appears that this system differs in different groups of Orbitoididae. For the sake of brevity however we will here confine ourselves to the groups connected with the genera to be dealt with in this monograph.

Description: A jubilee book in honour of Professor Martin is the right place for an essay on the Tertiary of the Dutch East Indies, as it was he who laid the foundations of stratigraphy in that district. The basis upon which he founded the subdivisions of the tertiary deposits has proved the firmer the more it has been tested.

Description: The plates I—XI contain illustrations of all the skulls and horn-cores of Bovidae from the Quaternary of the Netherlands, brought together in the National Museum of Geology at Leyden, Holland. They were all photographed with the occiputs vertical or what is thought to be vertical. They are described in the same order as figured. On the plates I—V are represented the skulls and horn-cores of the domesticated cows. Four races are distinguished among them: the brachyceros-race (fig. 1—25), the frontosus-race (fig. 26), the primigenius-race (fig. 27—41) and the trochoceros-race (fig. 42—46). The brachyceros-skulls and horn-cores have the following characteristics: a sharp angle (30°—50°) between the plane of curvature of the horn-cores and the horizontal plane, cores that are curved in one plane, a sharp angle (about 70°) between os frontale and os occipitale, a small breadth of the os frontale (table 1, measurement 2: 137—145 mm), a small index 6 (table 1), small measurements 10, 15 and 16 (table 1), a large breadth to length-index of the os frontale (table 1, measurement 13), a small difference between the length (table 1, measurement 27) and the basal circumference of the horncores (table 1, measurement 26). Examples of typical representatives of brachyceros-cows are given by the figures 3, 6, 8, 9, 12, 13, 21 and 22. The skulls and cores of the figures 2, 4, 7, 15 and 24 show some affinity to the primigenius-race and those of the figures 1, 5, 10, 16, 17, 18 and 23 to the trochoceros-race. The basal parts of the cores of figure 26 are strongly curved backwards and the plane of curvature nearly coincides with the frontal plane. As the points of the horn-cores are missing, the determination is somewhat uncertain. It is, however, not impossible, that this skull belonged to a frontosus-cow. The skulls and horn-cores, which I believe that belong to the primigenius-race, have the following characteristics: the cores are (when the occiput is placed in the vertical plane) directed strongly upwards and are not curved in one plane; the min. breadth of the os frontale (table 3, measurement 2), the length of the forehead (table 3, measurement 10) and the breadth of the occiput (table 3, measurements 15 and 16) are larger than those of the brachy-ceros-cows; there is a large difference between the length of the cores (table 3, measurement 27) and their basal circumference (table 3, measurement 26). Examples of typical representatives of the primigenius-race are given by the figures 27, 28, 31, 33 and 34. The horn-core of figure 29 probably belonged to a young Bos primigenius. The skulls and cores of figures 30, 32 and 35 show some affinity to the brachyceros-race. The skulls and horn-cores of plate V are believed to be representatives of the trochoceros-race. They are characterized by an angle of 10°—20° between the plane of curvature and the horizontal plane, a curvature of the cores in one plane, a backward curving of the basal parts of the cores, a longer breadth to length-index of the os frontale (table 4, measurement 2), a length of the forehead (table 4, measurement 10) and a breadth of the occiput (table 4, measurement 15 and 16) which are larger than those of the brachyceros-race. On the plates VI—VIII are presented the skulls and horn-cores of Bos primigenius. Comparing the measurements (see table 5) with those of males and females, as given by Adametz, it is clear, that the skulls and cores of figures 47, 48, 49, 50 and 53 belonged to males and that of figure 51 to a female. Skulls and horn-cores of Bison priscus are presented on the plates IX—XI. Among them are distinguished two different races, Bison priscus longicornis Grom. (plate IX, plate X, fig. 62, 65, 66, 67 and plate XI) and Bison priscus deminutus Grom. (fig. 63—64). The first is characterized by a large and narrow skull with long and slender cores and with a breadth to length-index of the os frontale (table 6, measurement 13) of 133—147. A comparison with the measurements as given by Gromova makes it probable, that only the skulls of figures 60 and 63 are females whereas all the others belonged to males. Bison priscus deminutus (fig. 63 and 64) is characterized by a moderately sized skull with massive cores and with a breadth to lengthindex of the os frontale (table 6, measurement 13) of 124. The min. breadth of the os frontale (table 6, measurement 2) is only 267—286 mm. There is, however, some difference between the skull of figure 63 and the skull of figure 64. The first mentioned has a convex forehead with regular transitions in the cores; the cores are only feebly curved. This skull is supposed to have belonged to a female animal. The skull of figure 64 has a flat forehead sharply separated from the cores; the cores are much more curved. This skull probably belonged to a male bison. Table 7 gives a review of the stratigrapbical distribution of the Bovidae, here described. The specimens of Bison priscus from Bokhoven (fig. 61), Brummen (fig. 74) and Drempt (fig. 64) certainly belong to Würm Glacial and the others probably also. The specimens of Bos primigenius may be devided into three groups. Enterbroek (fig. 48) and Ammerozden (fig. 49) belong to the Würm Glacial. Lutterzijl (fig. 47), Nieuwe Merwede (fig. 50) and Terschelling (fig. 51) belong either to the Würm Glacial or to the Holocene. The others are holocene. Of these the specimen from Veghel, 2 m (fig. 54) belongs to the Boreal and those from the Mease-tunnel (fig. 52, 55, 56 and 58) and Dinther (fig. 53) to the Subboreal. The normalisation-works of the river Aa, Northern Brabant, have furnished some important data as to the stratigraphical distribution of Bos taurus. The oldest specimen, Veghel, 2½ m — (fig. 23), has been dated by pollen analysis as belonging to the upper part of the Würm Glacial, the so-called Lateglacial. However, it is not probable, that this horn-core is derived from a domesticated animal. The oldest occurrence of domesticated brachyceros-oxen are contemporaneous with the Kjökkenmöddinger culture (5000—4000 b. C.). The horn-core of Veghel, on the other hand, is of the same age as the late palaeolithic culture (before 8000 b. C.). Therefore it is much more probable, that the core belonged to a wild ox, namely Bos (Brachyceros) europaeus Adametz. By several investigators (Adametz, Antonius) this species is considered to be the wild ancestor of the domesticated brachyceros-oxen. The specimen from Veghel renders this theory more probable than the view advocated by Nehring, Duerst and Hilzheimer, who suppose, that all the races of Bos taurus, the brachycerosrace included, descended from Bos primigenius Boj. The first undoubted tame cows from the river-basin of the Aa are dated by pollen analysis as belonging to the transition from Boreal to Atlanticum. This is the beginning of the late mesolithic Kjökkenmödinger culture. The still persisting flint-industry (microliths) is associated with the first pottery. It is the time of beginning agriculture. As demonstrated by the finding of remains of Cervus elaphus L. and Bos primigenius Boj., the deer and the aurochs were formed the chief hunting quarry. In Subboreal time this district was inhabited by the so-called „urnpeople”, by who not only the brachycerosbut also the more robust primigeniusand trochoceros-cows were breeded. The district of the larger rivers is characterized by the absence of Bos taurus brachyceros, the probable presence of Bos taurus frontosus, during the Subboreal, and the presence of Bos taurus primigenius during the Boreal and Subboreal. The absence of the brachyceros-cow is probably imputable to a hiatus in the collections of the Museum at Leyden. Contrary to Bos taurus brachyceros, Bos taurus primigenius is generally considered to be a direct descendant of Bos primigenius. It is however not yet known at what time the first aurochses were domesticated. Without doubt the skull from Wijk-bij-Duurstede (fig. 27) belonged to an animal, that lived at the beginning of domestication. The frontosus-ox is not found among the fauna of the Swiss lake dwellings. However it is described by Degerbøl from the Subboreal of Denmark (Bundsø). Therefore it is probable, that the „urn-people” living along the large rivers had a different origin to the people dwelling in the sandy regions of Brabant.

Description: The plates I\xe2\x80\x94XI contain illustrations of all the skulls and horn-cores of Bovidae from the Quaternary of the Netherlands, brought together in the National Museum of Geology at Leyden, Holland. They were all photographed with the occiputs vertical or what is thought to be vertical. They are described in the same order as figured.\nOn the plates I\xe2\x80\x94V are represented the skulls and horn-cores of the domesticated cows. Four races are distinguished among them: the brachyceros-race (fig. 1\xe2\x80\x9425), the frontosus-race (fig. 26), the primigenius-race (fig. 27\xe2\x80\x9441) and the trochoceros-race (fig. 42\xe2\x80\x9446).\nThe brachyceros-skulls and horn-cores have the following characteristics: a sharp angle (30\xc2\xb0\xe2\x80\x9450\xc2\xb0) between the plane of curvature of the horn-cores and the horizontal plane, cores that are curved in one plane, a sharp angle (about 70\xc2\xb0) between os frontale and os occipitale, a small breadth of the os frontale (table 1, measurement 2: 137\xe2\x80\x94145 mm), a small index 6 (table 1), small measurements 10, 15 and 16 (table 1), a large breadth to length-index of the os frontale (table 1, measurement 13), a small difference between the length (table 1, measurement 27) and the basal circumference of the horncores (table 1, measurement 26). Examples of typical representatives of brachyceros-cows are given by the figures 3, 6, 8, 9, 12, 13, 21 and 22. The skulls and cores of the figures 2, 4, 7, 15 and 24 show some affinity to the primigenius-race and those of the figures 1, 5, 10, 16, 17, 18 and 23 to the trochoceros-race.\nThe basal parts of the cores of figure 26 are strongly curved backwards and the plane of curvature nearly coincides with the frontal plane. As the points of the horn-cores are missing, the determination is somewhat uncertain. It is, however, not impossible, that this skull belonged to a frontosus-cow.\nThe skulls and horn-cores, which I believe that belong to the primigenius-race, have the following characteristics: the cores are (when the occiput is placed in the vertical plane) directed strongly upwards and are not curved in one plane; the min. breadth of the os frontale (table 3, measurement 2), the length of the forehead (table 3, measurement 10) and the breadth of the occiput (table 3, measurements 15 and 16) are larger than those of the brachy-ceros-cows; there is a large difference between the length of the cores (table 3, measurement 27) and their basal circumference (table 3, measurement 26). Examples of typical representatives of the primigenius-race are given by the figures 27, 28, 31, 33 and 34. The horn-core of figure 29 probably belonged to a young Bos primigenius. The skulls and cores of figures 30, 32 and 35 show some affinity to the brachyceros-race.\nThe skulls and horn-cores of plate V are believed to be representatives of the trochoceros-race. They are characterized by an angle of 10\xc2\xb0\xe2\x80\x9420\xc2\xb0 between the plane of curvature and the horizontal plane, a curvature of the cores in one plane, a backward curving of the basal parts of the cores, a longer breadth to length-index of the os frontale (table 4, measurement 2), a length of the forehead (table 4, measurement 10) and a breadth of the occiput (table 4, measurement 15 and 16) which are larger than those of the brachyceros-race.\nOn the plates VI\xe2\x80\x94VIII are presented the skulls and horn-cores of Bos primigenius. Comparing the measurements (see table 5) with those of males and females, as given by Adametz, it is clear, that the skulls and cores of figures 47, 48, 49, 50 and 53 belonged to males and that of figure 51 to a female.\nSkulls and horn-cores of Bison priscus are presented on the plates IX\xe2\x80\x94XI. Among them are distinguished two different races, Bison priscus longicornis Grom. (plate IX, plate X, fig. 62, 65, 66, 67 and plate XI) and Bison priscus deminutus Grom. (fig. 63\xe2\x80\x9464). The first is characterized by a large and narrow skull with long and slender cores and with a breadth to length-index of the os frontale (table 6, measurement 13) of 133\xe2\x80\x94147. A comparison with the measurements as given by Gromova makes it probable, that only the skulls of figures 60 and 63 are females whereas all the others belonged to males. Bison priscus deminutus (fig. 63 and 64) is characterized by a moderately sized skull with massive cores and with a breadth to lengthindex of the os frontale (table 6, measurement 13) of 124. The min. breadth of the os frontale (table 6, measurement 2) is only 267\xe2\x80\x94286 mm. There is, however, some difference between the skull of figure 63 and the skull of figure 64. The first mentioned has a convex forehead with regular transitions in the cores; the cores are only feebly curved. This skull is supposed to have belonged to a female animal. The skull of figure 64 has a flat forehead sharply separated from the cores; the cores are much more curved. This skull probably belonged to a male bison.\nTable 7 gives a review of the stratigrapbical distribution of the Bovidae, here described.\nThe specimens of Bison priscus from Bokhoven (fig. 61), Brummen (fig. 74) and Drempt (fig. 64) certainly belong to W\xc3\xbcrm Glacial and the others probably also.\nThe specimens of Bos primigenius may be devided into three groups. Enterbroek (fig. 48) and Ammerozden (fig. 49) belong to the W\xc3\xbcrm Glacial. Lutterzijl (fig. 47), Nieuwe Merwede (fig. 50) and Terschelling (fig. 51) belong either to the W\xc3\xbcrm Glacial or to the Holocene. The others are holocene. Of these the specimen from Veghel, 2 m (fig. 54) belongs to the Boreal and those from the Mease-tunnel (fig. 52, 55, 56 and 58) and Dinther (fig. 53) to the Subboreal.\nThe normalisation-works of the river Aa, Northern Brabant, have furnished some important data as to the stratigraphical distribution of Bos taurus. The oldest specimen, Veghel, 2\xc2\xbd m \xe2\x80\x94 (fig. 23), has been dated by pollen analysis as belonging to the upper part of the W\xc3\xbcrm Glacial, the so-called Lateglacial. However, it is not probable, that this horn-core is derived from a domesticated animal. The oldest occurrence of domesticated brachyceros-oxen are contemporaneous with the Kj\xc3\xb6kkenm\xc3\xb6ddinger culture (5000\xe2\x80\x944000 b. C.). The horn-core of Veghel, on the other hand, is of the same age as the late palaeolithic culture (before 8000 b. C.). Therefore it is much more probable, that the core belonged to a wild ox, namely Bos (Brachyceros) europaeus Adametz. By several investigators (Adametz, Antonius) this species is considered to be the wild ancestor of the domesticated brachyceros-oxen. The specimen from Veghel renders this theory more probable than the view advocated by Nehring, Duerst and Hilzheimer, who suppose, that all the races of Bos taurus, the brachycerosrace included, descended from Bos primigenius Boj.\nThe first undoubted tame cows from the river-basin of the Aa are dated by pollen analysis as belonging to the transition from Boreal to Atlanticum. This is the beginning of the late mesolithic Kj\xc3\xb6kkenm\xc3\xb6dinger culture. The still persisting flint-industry (microliths) is associated with the first pottery. It is the time of beginning agriculture. As demonstrated by the finding of remains of Cervus elaphus L. and Bos primigenius Boj., the deer and the aurochs were formed the chief hunting quarry.\nIn Subboreal time this district was inhabited by the so-called \xe2\x80\x9eurnpeople\xe2\x80\x9d, by who not only the brachycerosbut also the more robust primigeniusand trochoceros-cows were breeded.\nThe district of the larger rivers is characterized by the absence of Bos taurus brachyceros, the probable presence of Bos taurus frontosus, during the Subboreal, and the presence of Bos taurus primigenius during the Boreal and Subboreal. The absence of the brachyceros-cow is probably imputable to a hiatus in the collections of the Museum at Leyden.\nContrary to Bos taurus brachyceros, Bos taurus primigenius is generally considered to be a direct descendant of Bos primigenius. It is however not yet known at what time the first aurochses were domesticated. Without doubt the skull from Wijk-bij-Duurstede (fig. 27) belonged to an animal, that lived at the beginning of domestication.\nThe frontosus-ox is not found among the fauna of the Swiss lake dwellings. However it is described by Degerb\xc3\xb8l from the Subboreal of Denmark (Bunds\xc3\xb8). Therefore it is probable, that the \xe2\x80\x9eurn-people\xe2\x80\x9d living along the large rivers had a different origin to the people dwelling in the sandy regions of Brabant.

Description: Dr. H. G. Kugler, chief geologist of the North Venezuelan Petroleum Company, at Puerto Cabello, entrusted us with the examination of a collection of larger foraminifera, selected from material collected by the geologists of this Company in Central Falcon. Dr. A. Senn kindly added material that had already been collected from the same region by Prof. Dr. M. Reinhard and Dr. M. Blumenthal. The material thus combined should give us a clear picture of the distribution of the larger foraminifera in 7 stages of the Tertiary in this Venezuelan region.\nWe are very much indebted to Dr. Kugler not only for entrusting us with this material, but also for the constant aid given us during the investigation. We also wish to thank Dr. A. Senn, Dr. W. T. Keller and Dr. E. Lehner for information and the directors of the Museum of Natural History at B\xc3\xa2le for lending material. Last but not least we wish to express our thanks to the Direction of the North Venezuelan Petroleum Company who not only were so broadminded as to permit the publication of the results, but who also voted a sum for the costs of investigation and publication.

Description: Er zijn verschillende redenen om te veronderstellen, dat het grondgebied, dat men thans Nederland noemt, in het Pleistoceen bewoond was.\nZowel in het Noorden als in het Zuiden zijn artefacten gevonden, die beschouwd worden als te behoren tot palaeolithische culturen.

Description: A jubilee book in honour of Professor Martin is the right place for an essay on the Tertiary of the Dutch East Indies, as it was he who laid the foundations of stratigraphy in that district.\nThe basis upon which he founded the subdivisions of the tertiary deposits has proved the firmer the more it has been tested.

Description: Some years ago we received a collection of foraminifera-bearing samples from Dr. H. K. Kugler and Dr. E. Lehner for examination, in sequence to the collection of larger foraminifera already examined from Central Falcon (Venezuela). (See Nettie E. Gorter and I. M. van der Vlerk, L.G.M., Dl. IV, afl. 2, 1932, p. 94\xe2\x80\x94122).\nThe material from Trinidad is very rich in representatives of the Orbitoididae family. On a closer study of the different genera of this family, for which the large collection of Indian and European Orbitoididae in the National Geological Museum in Leiden provided ample material, we observed that for the determination of genus the interlocular canalsystem is the most important feature. In the Orbitoididae the plasma is conveyed through the equatorial plane by means of canals and stolons. The first complete description of this was given by H. J. Carter in the Annals of Nat. Hist., 3rd series, vol. VIII, p. 449\xe2\x80\x94453. In this article he remarks that in Orbitoides there are always four stolons to each chamber, while in infiltrated specimens of Orbitolites (= Lepidocyclina) mantelli, he sometimes found ever 6. C. W. G\xc3\xbcmbel, Abh. k. bayer. Ak. W., II, Cl, X, Bd. II, 1868, p. 673, pointed out that these stolons formed a system, which he calls an interlocular canalsystem in analogy to the \xe2\x80\x9einterseptal canalsystem\xe2\x80\x9d which runs through the septa of the chambers in most foraminifera, but which is absent in the Orbitoididae. To avoid confusion with this interseptal canalsystem which in the literature is called simply canalsystem, we thought it better to use the expression \xe2\x80\x9estolonsystem\xe2\x80\x9d here. It now appears that this system differs in different groups of Orbitoididae. For the sake of brevity however we will here confine ourselves to the groups connected with the genera to be dealt with in this monograph.

Description: There was one great drawback to the decision of the commission for editing this jubilee volume in honour of Prof. Martin in the form that is here shown. It was namely impossible to call in the help of the most competent person for compiling the chapter on the mollusca. One cannot request a scientist to contribute to the celebration of his own jubilee.\nThat I finally decided to undertake this work, that ought to have been done by Prof. Martin himself, is owing to the fact that I was in a better position to learn the opinions of Martin than any other, as keeper of the museum in which nearly all mollusca described by this still active worker are to be found. For this help, though it was given inadvertently, I wish to express my sincere thanks to my much honoured tutor.