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  • 1
    Electronic Resource
    Electronic Resource
    A Point in the Theory of ‘Critical Illumination’ in the Microscope. (1930)
    [s.l.] : Nature Publishing Group
    Nature 125 (1930), S. 741-742 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT is extremely difficult to give any general theory of the formation of the image in the microscope, inasmuch as the action differs with every different object and with the arrangement of the illumination. On the other hand, it is possible to give a satisfactory account of particular cases ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/125741b0
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  • 2
    Electronic Resource
    Electronic Resource
    Ultra-Violet and Electron Microscopy (1940)
    [s.l.] : Nature Publishing Group
    Nature 146 (1940), S. 288-292 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE compound microscope has now been known to science for about three hundred and fifty years, but the development of the instrument has been curiously spasmodic in spite of its admitted importance. The earliest models were perhaps looked on as little more than toys, and it was not until the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/146288a0
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  • 3
    Electronic Resource
    Electronic Resource
    Science and Armaments (1923)
    [s.l.] : Nature Publishing Group
    Nature 111 (1923), S. 429-429 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DR. FRENCH'S reply (NATURE, February 10) to my letter in the issue of January 20 does not touch upon the essential idea which I desired to express. I did not raise the question of the dispensability or indispensability of armaments at the present moment: a question on which a great deal might ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/111429b0
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  • 4
    Electronic Resource
    Electronic Resource
    The Physical Meaning of Spherical Aberration (1920)
    [s.l.] : Nature Publishing Group
    Nature 106 (1920), S. 567-567 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MAY I correct an obvious mistake of mine which I notice in my letter on spherical aberration appearing in NATURE of December 9?. The second expression for intensity should read: ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/106567d0
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  • 5
    Electronic Resource
    Electronic Resource
    Science and Armaments (1923)
    [s.l.] : Nature Publishing Group
    Nature 111 (1923), S. 82-82 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] I DESIRE to direct the attention of readers of NATURE to a matter which I think to be of importance. During the war of 1914–18 a great number of scientific men, other than those in the medical service, were engaged on work which was devoted entirely to military ends. Since the armistice ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/111082b0
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  • 6
    Electronic Resource
    Electronic Resource
    The Physical Meaning of Spherical Aberration (1920)
    [s.l.] : Nature Publishing Group
    Nature 106 (1920), S. 469-471 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE nature of the distribution of light round the axial focus of a lens is a problem which has frequently been attacked mathematically. It has been quite successfully solyed for points in the principal focal planf of an “aplanatic” lens when the intensity is found to depend on functions of the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/106469a0
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  • 7
    Electronic Resource
    Electronic Resource
    The Electron Microscope (1938)
    [s.l.] : Nature Publishing Group
    Nature 142 (1938), S. 1062-1065 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] INTRODUCTORY IT has been known for many years that cathode rays can be deflected by electric and magnetic fields, but in 1926 Busch showed that axially symmetrical fields would have the power of focusing such rays, much as light is focused by a lens. Any axially symmetrical lens system will ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1421062a0
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  • 8
    Electronic Resource
    Electronic Resource
    Ultra-Violet Microscopy (1928)
    [s.l.] : Nature Publishing Group
    Nature 121 (1928), S. 419-420 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN preparation for giving a course of instruction in ultra-violet microscopy, I have had occasion to study some of the incidental problems in this subject. One of the most troublesome was the provision of a satisfactory immersion fluid, which has hitherto consisted of a mixture of glycerine and ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/121419a0
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  • 9
    Electronic Resource
    Electronic Resource
    Flash Visual Acuity (1947)
    [s.l.] : Nature Publishing Group
    Nature 159 (1947), S. 25-26 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MOST published researches on visual acuity have assumed an unrestricted time of observation, but recent studies of the relations between intensity discrimination and acuity, and photo-chemical theories thereof, have indicated that the wandering of fixation plays an important part in the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/159025b0
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  • 10
    Electronic Resource
    Electronic Resource
    Phase-Contrast Methods in Microscopy (1947)
    [s.l.] : Nature Publishing Group
    Nature 159 (1947), S. 827-830 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IF we place, on the stage of a microscope, a slide coated with a thin but opaque metal film pierced by small apertures of distinctive shapes and sizes, there is no doubt as to how its image should appear. We expect to seea dark field surrounding bright areas geometrically similar to the apertures, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/159827a0
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