. The anatomy and physiology of the human body. Containing the anatomy of the bones, muscles, and joints; and the heart and arteries . that the rays are not split and multiplied b\-the prism. When a ray of light falls upon the surface of glass obliquelyit inclines to a line drawn (through the point of incidence).perpendicular to the surface. F^.2. Thus the ray A, fig. 1, proceeding from the object, *, isrefracted upon entering the mass of glass in the direction B,having a tendency towards the perpendicular line. By thismeans, if a number of rays proceeding from any one point, asin fig.
. The anatomy and physiology of the human body. Containing the anatomy of the bones, muscles, and joints; and the heart and arteries . that the rays are not split and multiplied b\-the prism. When a ray of light falls upon the surface of glass obliquelyit inclines to a line drawn (through the point of incidence).perpendicular to the surface. F^.2. Thus the ray A, fig. 1, proceeding from the object, *, isrefracted upon entering the mass of glass in the direction B,having a tendency towards the perpendicular line. By thismeans, if a number of rays proceeding from any one point, asin fig. 2, fall on a convex^ or spherical surface of glass, theywill be inflected so as to gather about the perpendicular line OF THE EYE. li A A in the centre of the glass : which perpendicular line is theaxis of the glass. If the rays of light proceeding from an objectbe made to strike into a mass of glass with a concave surface,the obliquity with which they impinge upon the surface, beingthe reverse of the convex surface, they are not made to con-verge upon the central line, but diverge from it. Farther, the rays of the sun, when passing from a medium ofglass into the air, are turned, by refraction, farther off fromthe central line to which they were drawn in entering theconvex surface of glass. But if the rays, in passing throughthe glass, were
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Keywords: ., bookcentury1800, bookidanatomyphysiolog, booksubjecthumananatomy
