Show use ultra violet ray tle ultra vialet ray already e em ra aloyed profitably by iown inin to liea heal human ills Is being used nt at the university of wisconsin to produce more and better 1 eggs and chickens nearly three times throes its as many eggs can be produced liy by action of tile the ray tho the departments of agricultural chemistry and poultry have found heavier shells in irradiated pens also increased marketability ot of eggs tile the ultra vio let ight was found to cure fowls suf federig frow fron rickets |