Show sees kinship between vitamins and vision the manner in which tile the eye mor orla 9 how it hat one know a ns as color Is a verl ver considerable consi dorable mystery ahe puzzle la IS riot not very much but Is INS silly fill ly inide in ule more inore interesting sting hy by tho recent that there Is a close re beatin atin between vitamin A and tile the of vis visual at in the retina tt it has bus long been knoon that visual purple adi plia an part in tl tj 0 function functioning lug or of tile the retinal rods Is sen sensitive to light to IL a colorless material exposed to N when lien this dr borga go dnald at the institute hole I 1 ole misa dig coveted that when the purple be comes a slightly yellow la is st fo f o n it it material a hill erto arto unknown client teal leal wn wa i 4 found to be closely relate I 1 to carotene which in turn Is a close restive of vitamin A doctor ald then actually wit hessed tile transformation of the jew yellow substance into vitamin A literary digest |