The microscope; an introduction to microscopic methods and to histology (1917)
Gage, Simon Henry, 1851-1944 · [Ithaca, N.Y.] The Comstock Pub. Co. · leaf 161
he average. Supposethis average is i| revolutions or 125 graduations on the wheel, tomeasure the 0.01 mm. or 10 [x (see § 246), then one of the graduationson the wheel would measure 10 fx divided by 125 = 0.08/x. In usingthis valuation for actual measurement, the tube of the microscopeand the… … Fig. 93. Filar Micrometer Ocular. (From the 16th ed. of the Catalogue of the Bausch &Lomb Optical Co.). This is a Ramsden ocular, and the recording drum isdivided into 100 equal divisions, and as the pitch of thescrew is 0.5 mm., each division on the drum representsan actual movement of 0.005…
Microscopy · Microscopy -- Technique
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