Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 177
Fig. HO.—A Ross microscope. … Fig. 117.—H. Powells microscope (lull). PRINCIPAL MODERN STANDS 153 a fine adjustment in this to act upon the nose-piece only, which, aswe shall subsequently see, is a very inferior method. This instru-ment is shown in fig. 116. Ross tried various modifications of thisfine adjustment and model, but…
Microscopy
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