Medicine: Testosterone

True to his promise of a month ago that he would soon be able to manufacture the hormone secreted by the testes which accounts for masculinity (TIME, Sept. 2), Dr. Leopold Ruzicka, Swiss chemist, last week announced that his assistants in his Zurich laboratory had just cabled him word of their success. Testosterone is the name of the new hormone. It is related to the male sex hormone, androsterone, found in urine which Dr. Ruzicka previously synthesized. Like androsterone, testosterone is made from the fat (cholesterol) in sheep's wool, but is 25 to...

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