Females have two sex hormones. Males have been conceded but one, though male and female sex glands are analogous. Last week Dr. D. Roy McCullagh of the Cleveland Clinic Foundation reported in Science "almost but not absolutely conclusive" arguments for the presence of two testicular hormones. In a benzene solution an extract prepared from the gonads produces the well-known hormone which is responsible for the development and maintenance of the secondary male sex characteristics (beard, voice, chest hair, etc. etc.). It is called "androtin" from the Greek root andros (man). Dr. McCullagh made...
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