Elementary natural philosophy : designed for high schools and academies (1881)
Griffin, La Roy F. (La Roy Freese), 1844-1916 · Philadelphia : Sower, Potts & Co. · leaf 226
d. 737. Near Sightedness. This defect is caused by toogreat a curvature of the lens of the eye, so that the rays of light are brought to a focusbefore reaching the retina, orby a lengthening of the body ofthe eye so that the retina isthrown behind the focus. Themodel of Fig. 255 shows this… … SMllillilllliilllllllllllilillllllilllilllilllihiililFig. 23
Physics
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
