Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 368
t near at hand would be brought to a focusbehind the retina (§§387, 388). But when we wish to see an objectclose at hand we involuntarily alter the curvature of the surfaces—chiefly the forward surface—of the crystalline lens, making it moreconvex, so that the image is brought upon the retina and… … Fig. 424.- How to show that theimage on the retina is inverted. 358 OPTICAL INSTRUMENTS In order to see an object distinctly we naturally bring it near tothe eye. As it approaches, our vision of it improves until it getswithin a certain distance, and then we have to strain tlie eye to seeit…
Physics
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