The microscope; an introduction to the microscopic methods and to histology (1911)
Gage, Simon Henry, 1851-1944 · [Ithaca, N.Y.] The Comstock Publishing Company · leaf 80
ad- CH. II] LIGHTING AND FOCUSING 61 vantageous to discard the mirror and allow the light from the bullseye to pass directly into the condenser. In most cases no bulls eyeneed be used. The proper distance of the lamp from the mirror andthe proper elevation of the condenser give the required… … FiG. 60. 1. Lamp with slit-opening in metal chimney. 2. Bulls eye onseparate stand. 3. Screen showing image of flame. above method were strictly followed ; in this case turn the lamp sothat the flame is oblique, or if that is not sufficient, continue to turnthe lamp until the full width of the…
Microscopy
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