The microscope : its construction and management : including technique, photo-micrography, and the past and future of the microscope (1893)
Heurck, Henri van, 1838-1909 · London : C. Lockwood ; New York : D. Van Nostrand Co. · leaf 362
THE MICROSCOPE IN THE PAST AND IN THE FUTURE. 341 the arm D, which carries the lenses, to be raised or lowered as desired. This last-mentioned arm slides back-wards and forwards in the socket whichis at the end of the rod C, and thesedifferent movements enable the lenses tobe brought over the whole…
Microscopy
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