White mice from the Rockefeller Institute breeding room fed on a McCollum complete diet, consisting of whole wheat (67.5 per cent), casein (15 per cent), milk powder (10 per cent), NaCl (1 per cent), CaCO3(1.5 per cent), and butter fat (5 per cent) are more resistant to mouse typhoid infection, mercury bichloride intoxication, and botulinus toxin than are similar mice fed on bread and pasteurized milk supplemented by an oatmeal and buckwheat mixture and dog biscuit.

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