Show egg liver oil hens used to give us eggs and ancl cod used to yield us liver oil but oil all changed dr 11 II B thomas professor of animal research chemistry at the state university of iowa feeds his hens on irradiated yeast which makes them lay eggs so full of vitamin D that each egg contains as much of that vital vita min as do three teaspoonfuls of cod liver oil doctors used to say one drop of cod liver oil all contained all the nourishment of three pounds of beef steak it looks then says tit bits magazine as though doctor thomas has succeeded in con densing a whole ox in on an eggshell |