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 113
ed in a small brass case, whose distance from the eye-glass can be adjusted as required. In the camera lucida, now manufactured by the skilful Parisian maker, the small prism is done away with, and the reflection is effected by a very thin coating of gold. SoFig. 82. . thin indeed is this coating…
Microscopy
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