DENTAL CARIES IN THE COTTON EAT(5)

ly had been relatively caries-free (Os-born and Noriskin, '37; Stephan, '48). We wish to reportfurther studies on the caries-producing activity of processedor whole cereals when fed to cotton rats.1Published with the approval of the Director of the Wisconsin AgriculturalExperiment Station. Supported in part by grants from the Nutrition Foundation,Inc., New York, N. Y., and the National Dairy Council, Chicago, III.We are indebted to Merck and Co., Hahway, New Jersey, for the crystallinevitamins and to Abbott Laboratories, North Chicago, Illinois, for the halibutliver oil.Weanling cotton rats (19 to 21 days of age) from our stockcolony were used in these experiments. Stock animals andyoung were maintained on a non-cariogenic stock diet. Weanlings were distributed by litter-mate pairs among t