best to use a substage condenser. Often the light may be bal-anced by using a larger or smaller opening in the diaphragm. Onecan tell which field is excessively illuminated, for it is the one in whichobjects are most distinctly seen. If it is the microscopic, then the imageof the microscopic object… … Fig. in. Drawing Board for ike Abbe Camera Lusida This diawing board,devised by the Bausch & Lomb Optical Co , is adjustable vertically, and the boardmay be inclined to prevent distortion. It is also arranged for use with an inclinedmicroscope by having the base board hinged. Microscope and…
Microscopy
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