The outlines of physics: an elementary text-book (1897)
Nichols, E. L. (Edward Leamington), 1854-1937 · New York, The Macmillan Company; London, Macmillan & Co., Ltd. · leaf 415
hromaticlenses are always used inthe objectives of telescopes,microscopes, and other opti-cal instruments where chro-matic aberration would bedetrimental. 368. The Microscope. — The essential parts of thisinstrument, namely, the ob-jective and the eyepiece, are the same as in the tele-scope; but… … Pig. 373.
Physics
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