The microscope; an introduction to microscopic methods and to histology (1901)
Gage, Simon Henry, 1851-1944 · Ithaca, N.Y. Comstock publishing company · leaf 264
Fig. 199. Fig. 200. Fig. 2or. Fig. 199. Indicator ocular with -metal pointer like the one devised byQuekett (Leitz ; catalog). Fig. 200. Indicator ocular with an eyelash {cilium) on the ocular diaphragmto serve as a pointer ( P). This projects about half way across the diaphragm open-ing. On the…
Microscopy
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