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 140
COPES. fig microscopes. One of these (fig. 112) costs £2, accompanied bya doublet magnifying forty times. Another model, better finished (fig.113), has two doublets, and costs ^4. It consists of a heavyfoot, rigidly connected with the stage, and carrying a reflectingmirror. The doublet is carried… … Lastly, a more carefully finished model (fig. 114) provided with a square pillar, costs at present^5 4s. Chevalier sells hisdoublets separately. Their pricevaries as follows : Doubletsmagnifying, 12 to 120 times,8s.; the same 130 to 240 times,15s.; the same, 4S0 times, 16s.;the same, 500 times, £1.…
Microscopy
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