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But if, at any time after it is ripe for fertilization, that is, from the time it begins its journey from the ovaries to the womb, and while it is in the womb, the ovum is met by the male sperm, it is liable to become fertilized conception is possible.

Some of the glands of internal secretion act as accelerators to the sex glands. Others act as retarding antagonists. Among the most important of the latter is The thymus is the gland which dominates childhood. It appears to do so by inhibiting the activity of the testes or ovaries. Castration causes a persistent growth and retarded atrophy of the thymus.

CONCEPTION OR IMPREGNATION. Conception or impregnation takes place by the union of the male sperm and female sperm. Whether this is accomplished in the ovaries, the oviducts or the uterus, is still a question of discussion and investigation by physiologists. Stockham in her Tokology, "the ovum passes off within twenty-four or forty-eight hours after menstruation begins.

Hunter, Vidal, and Chaussier report in full cases of the absence of the ovaries, and Thudicum has collected 21 cases of this nature. Morgagni, Pears, and Cripps have published observations in which both ovaries were said to have been absent. Cripps speaks of a young girl of eighteen who had an infantile uterus and no ovaries; she neither menstruated nor had any signs of puberty.

It is not, therefore, stimulation of the intellect, but excitement of the feelings, that can be shown from physiological data to have an injurious effect upon the vaso-motor nerves of the uterus, or the ganglionic nerves of the ovaries, or, in other words, can be concerned in the production of uterine hæmorrhage. To be just, however, it must be admitted, that still another view is possible.

Steinach has been studying the interstitial cells that fill in the spaces between the tubules of the testes, in males, and between the follicles of the ovaries in females. His reason for choosing these cells for his experiments is that they are a well-spring of life.

Brinkley administers the local anesthetic, or the general anesthetic, if that is called for, as it sometimes is. While the bulk of the operations performed on both men and women are gland-transplantations, a diseased condition of tubes and ovaries has sometimes made a laporotomy necessary, and many major operations have been successfully performed in the white-enameled operating room.

The pollen-sacs are as a rule barren, the mother-cells undergoing atrophy, while normal grains are seen but rarely. Likewise the ovaries are rudimentary, but Wittmack has observed the occasional production of ripe grains from these abnormal florets. The scale is seldom seen to extend any farther upwards than the supernumerary flower.

For instance, a bulb of Hippeastrum aulicum produced four flowers; three were fertilised by Herbert with their own pollen, and the fourth was subsequently fertilised by the pollen of a compound hybrid descended from three other and distinct species: the result was that "the ovaries of the three first flowers soon ceased to grow, and after a few days perished entirely, whereas the pod impregnated by the pollen of the hybrid made vigorous growth and rapid progress to maturity, and bore good seed, which vegetated freely."

If a female before puberty is deprived of both ovaries, it leads her to develop masculine physical characteristics and her temperament is wholly lacking in those characteristics which, summed up, might, for the want of a better term, be called FEMININITY.