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
URL:
http://dx.doi.org/10.1038/168513b0
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