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(From the Department of Medicine, Stanford University Medical School, San Francisco.)
A linear relationship between renal weight and protein intake has been demonstrated for female rats at all ages. When receiving adequate amounts of protein in the form of casein it may be expressed: protein intake = 0.0183 renal weight 2.2875. This is similar to the formula expressing the same relationship for male rats, except that at a zero protein intake it demands a theoretical renal weight in relation to a unit of body surface (100 sq. cm.) of 125 instead of 150 milligrams, or 25 milligrams less.
Manuscript received 1 May 1930.