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 356
ened sand in moulds of a suitable shape, placed on a latheor special apparatus, generally turned in large workshops (such as thoseof Zeiss) by steam. When the glass is roughly shaped, and the desired curvature nearlyobtained, the serious and final operation is commenced. This work iscarried out by… … Fig. 203. in a point, which pivots in a metal centre placed on a horizontalsupport underneath. To this shaft is fixed a fly-wheel, and at its upper extremity apiece of iron placed horizontally receives a wooden handle. 336 THE MICROSCOPE IN THE PAST AND IN THE FUTURE. On the right of the lathe…
Microscopy
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