Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 271
lens work some such device is imperative..Home, however, who do a very large amount of microscopical workprefer to use two microscopes • the one a third or fourth class micro-scope, with only a coarse adj ustment and a 1-inch objective and mirror,,the other having a coarse and fine adjustment and a… … Fig. 191. Fig. li)2. weight it throws upon the fine adjustment. As this subject is fully-treated of under the heading of Microscope no more will be said atpresent than that a double nose-piece is to be preferred to a triple,,and a quadruple need not be entertained for a delicate instrumentunless it…
Microscopy
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