The microscope; an introduction to microscopic methods and to histology (1917)
Gage, Simon Henry, 1851-1944 · [Ithaca, N.Y.] The Comstock Pub. Co. · leaf 149
nd microscopemay be made as with a simple microscope (§ 230), but this is fatiguingand unsatisfactory. § 233. Stage, or object micrometer. — For determining the mag-nification of a compound microscope and for the purposes of microm-etry, it is necessary to have a finely divided scale or rule on… … The spaces between the lines should be 0.1 and 0.01 mm. (or if ininches, 0.01 and 0.001 in.). Micrometers are sometimes ruled on the slide, but more satisfactorilyon a cover-glass of knownthickness, preferably 0.15-0.18 mm. The coversshould be perfectly cleanbefore ruling, and after-wards simply…
Microscopy · Microscopy -- Technique
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