is placed over the ocular in sucha way that the light from the microscope passes through the hole inthe silvered face and thence directly to the eye. Light from thedrawing surface is reflected by a mirror to the silvered surface ofthe prism and reflected by this surface to the eye in company… … Fig. 127. Wollastoris Cam-era Lucida, showing the raysfrom the microscope and from thedrawing surface, and the positionof the pupii of the eye. See alsoFig. 112. For full explanation see Fig. 108 *For some persons the image and drawing surface,pencil, etc., do not appearon the drawing board as…
Microscopy
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![An illustration from L'optique divisée en trois livres : ou, l'On démontre d'une maniere aisée tout ce qui regarde 1. la propagation & les proprietez de la lumiere. 2. La vision. 3. La figure & la disposition des verres qui servent à la perfefectionner [sic] (1682)](https://img.insideoutlibrary.com/img/200/ia-loptiquedivise00ango-376-43.webp)
