d rests and nose-piece for several lenses ofdifferent pozver. (Bausch & Lomb Optical Co.). IO MICROSCOPE AND ACCESSORIES. \_CH. I. MECHANICAL PARTS. \ II. The Mechanical Parts of a laboratory, compound microscope are shown inthe frontispiece, and are described in the explanation of thfit… … OPTICAL PARTS. \ \2. Microscopic Objective.—Thisconsists of a converging lens or of oneor more converging lens-systems, whichgive an enlarged, inverted, real image ofthe object (Figs. 14, 21). And as for theformation of real images in all cases,the object must be placed outside theprincipal focus,…
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-204-22.webp)
