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"The proper study of mankind is man."—Pope.
The importance of a physiologic law of periodicity in the male, granting for the sake of argument such to be the fact, must needs be in its effect upon the human understanding so vast as to be scarcely of comprehension. And in its politico-economic influence of no less importance to the statesman than it is to the physician. Let us look at the scope of its application in figures in order to gain an approximate idea of the vastness of its application and influence. Just when puberty and the first orgasm, accompanied by the elimination of the male fecundating fluid, begins is not fixed at any definite year. Approximately, however, we know this with even more certainty than we do when it ceases."That women are menstruant and men pubescent at the year of twice seven is accounted a practical truth," Browne, "Vulgar
GREEN HL. PERIODICITY, A PHYSIOLOGIC LAW IN THE MALE SEX AS WELL AS IN THE FEMALE. JAMA. 1897;XXVIII(16):723–726. doi:10.1001/jama.1897.02440160005001a
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