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 206
in the strict sense of the term. Indistinctness of thecontours toward the borders of the 6eld of view arises as a rule, from unequalmagnification of the different zones of the objective; color bands in theperipheral portion (with good color correction in the middle) are caused byunequal… … Fig. 146. Abbe Apertoineter. \ 259. Determination of the Aperture of Objectives with an Apertometer.—Excellent directions for using the Abbe Apertometer may be found in the Jour.Roy. Micr. Soc, 1878, p. 19, and 1880, p. 20; in Dippel, Zimmerman, Czapskiand Spitta, Ch. XIV. The following directions…
Microscopy
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