The microscope; an introduction to the microscopic methods and to histology (1911)
Gage, Simon Henry, 1851-1944 · [Ithaca, N.Y.] The Comstock Publishing Company · leaf 152
to theupper part of the microscope tube. Belowis a face view, showing the graduation onthe wheel. An ocular micrometer like thisis in general like the cob-web micrometerand may be used for measuring objects ofvarying sizes very accurately: With theordinary ocular micrometer very smallobjects… … must be magnified T7^T2i>=5 diameters, that is, the real image is fivetimes as great in length as the object, and the size of an object may be deter-mined by putting it under the microscope and getting the size of the realimage in millimeters with the ocular micrometer and dividing it by the…
Microscopy
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