Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 299
image is Fig. 220. A, Fitting of polarising B, Fitting of analysing prism in sub-stage. prism above eye-piece. brighter, but a good dealof the margin of the fieldis cut off; and it isalways important that thepolarising prism shouldbe large, so as not to actas a diaphragm to the con-denser, thus…
Microscopy
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