Two famed breeders of mice are Professor Maud Slye of the University of Chicago and Dr. Clarence Cook Little of Jackson Memorial Laboratory at Bar Harbor, Me. Each has raised, killed and dissected more than 150,000 mice. Their purpose: to learn whether or not a tendency to cancer is inherited, and, if so, how. Dr. Slye has decided and firmly declared that cancer is genetically a recessive character which she can breed out of her mice and could, if given a stupendously free hand, breed out of human beings (TIME, Aug. 31)....
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