nt and convenient for Fig. 18. Achromatic Triplet for the pocket. As shown in the left hand figure itis composed of three lenses, one of crown and iivo of flint glass. The whole isprotected by a metal covering when not hi use. (Bausch & Lomb Opt. Co.) the pocket (Fig. 18). For use in… … 2 10. A Compound Microscope.—This enables one to see an enlarged, invertedimage. It always consists of two optical parts—an objective, to produce an en-larged, inverted, real image of the object, and an ocular acting in general like asimple microscope to magnify this real image (Fig. 21). There is…
Microscopy
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