Gage, Alfred P. (Alfred Payson), 1836-1903, Fessenden, C · Toronto : W.J. Gage · leaf 391
- adjusted, a distinct, real, and invertedimage can be seen upon the screen by looking through theaperture C. Wlicn the image is properly focused, tlie photo-grapher replaces the ground glass plate by a sensitized plate,and tlie chemical power of the suns rays paints a true pictureof the object on… … Fig. 207. § 317. The human eye. — Figure 297 represents a horizontalsection of this wonderful organ. Covering the front of the eye, like awatch-crystal, is a transparent coat 1,called the cornea. A tough membrane2, of which the cornea is a continua-tion, forms the outer wall of the eye,and is…
Physics
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