The Periodoscope
نویسنده
چکیده
we cannot go to press without directing the attention of the profession to this important and valuable contribution to obstetric literature. The object of the essay is to elucidate the "periodicities of the female sex," and the periodoscope is constructed with the view of enabling the practitioner to calculate, with almost unerring accuracy, these epochs in the female economy. The obstetric calendar is most ingeniously arranged, and will be found of essential service in elucidating all questions having reference to the duration of pregnancy, and other natural and morbid phenomena peculiar to women. The psychological physician, engaged in the treatment of insanity, can appreciate the value of a guide which will enable him to ascertain, with even an approach to correctness, the normal and disordered condition of the catamenial secretions. How much of the insanity of females is dependent upon or associated with the state of this important function 1 As the author of this essay observes, " in cases of prolonged puerperal mania, accompanied by suppression of the lochia and catamenia, it is of considerable value
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