t two-fold. 124 MAGNIFICATION AND MICROMETRY {CII. IV sented graphically the fact that the size of the virtual image de-pends directly on the distance at which it is projected, and this sizeis directly proportional to the vertical distance from the apex of the Fig. hi. Figure show-ing the position… … Fro. 112. Wollastons camera lu-cida in position on the upper end of thetube of the microscope. (Cut loaned bythe Spencer Lens Co.)
Microscopy
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