Ernst Leitz (Firm) · Wetzlar : Ernst Leitz · leaf 74
strument and by aprism which fits over the eye-piece of the microscope.The prism is supported on a vertical hinge so that itmay be readily turned out of the axis of the microscopewithout disconnecting the whole apparatus from thestand. It is shown turned to the side in the figure.A cylindrical cap… … Drawing Board No. 86. Drawing Board No. 87 after Giesenhagen. The Drawing boards serve two purposes. Theyafford a smooth plane surface for the drawing paperand they are so arranged that they may be inclinedat such an angle as to receive the rays of the reflected - 72 — No. _ j image at right angle…
Microscopy
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