Abstract
The effect of radiant energy upon the metabolism of small doses of Fe in the nutritional anemia of the rat seems to have been little studied. Foster1 produced anemia in rats by milk feeding and observed the effect of radiant energy in preventing and curing this type of anemia. There was a slight but definite effect in increasing the hemoglobin and the number, size and saturation of the red cells.We have made the following studies upon the effect of radiant energy upon both the prevention and cure of nutritional anemia in the rat.Preventive Studies. Young rats at weaning were fed upon whole milk. Daily doses of pure Fe from 0.05 to 0.30 mg. were given, with and without 3/4 hour ultraviolet irradiation of the rat daily, with the General Electric Sunlight Mazda Lamp, Type S-I, at a distance of 4 feet. This lamp has recently been described by Carter.2 Weekly estimations of hemoglobin and red cell counts were made by the technique described by Beard and Myers.8With milk alone, milk plus irradiation, irradiated...
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