Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 169
.—The same effect is pro-duced by a contrivance whichhas been devised by MM. Eachetfor use with vertical Micro-scopes, and is much employedon the Continent. It consists ofa prism of a nearly rhomboidalform (Fig. 70), which is placedwith one of its inclined sides a c,over the eye-piece of the… … Nachets Camera Lucida. CAMERA LUCIDA. 115 passes into the small cylinder e, and out from the side a b, of thelarger prism, without sustaining any refraction, and with very littleloss by reflexion from the inclined surfaces at which they join. Butthe ray a V, which comes from the tracing point on a…
Microscopy · Biology
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