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    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 168 (1951), S. 513-514 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] It can easily be shown that even with the fine focus now available (4 y. x 40 (x) it is advisable, in this wave-length range, to rely entirely on optical magnification of shadow-graphs and to place the specimen close to a photographic plate of high resolution. For, in the case of direct shadow ...
    Type of Medium: Electronic Resource
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