Nursing.--The process of development is not fully complete at birth. The young life is not yet prepared to support itself; hence, still further provision is necessary for it. It requires prepared food suited to its condition. This is provided by the _mammae_, or breasts, of the female, which are glands for secreting milk. The fully developed gland is peculiar to the female; but a few instances have been known in which it has been sufficiently developed to become functionally active in men, as well as in young girls, though it is usually inactive even in women until near the close of gestation. It is a curious fact that the breasts of a new-born child occasionally contain milk. The first product of the mammae is not the proper milk secretion, but is a yellowish fluid called _colostrum _. The true milk secretion begins two or three days after delivery. The lacteal secretion is influenced in a very remarkable manner by the mental conditions of the mother. By sudden emotions of grief or anger, it has been known to undergo such changes as to produce in the child a fit of indigestion, vomiting, diarrhea, and even convulsions and death. Any medicine taken by the mother finds its way into the milk, and often affects the delicate system of the infant more than herself. This fact should be a warning to those nursing mothers who use stimulants. Cases are not uncommon in which delicate infants are kept in a state of intoxication for weeks by the use of alcoholic drinks by the mother. The popular notion that lager-beer, ale, wine, or alcohol in any other form, is in any degree necessary or beneficial to a nursing woman is a great error which cannot be too often noticed and condemned. Not only is the mother injured, instead of being benefited by such a practice, but great injury, sometimes life-long in its consequences, is inflicted upon the babe at her breast who takes the intoxicating poison at second hand, and is influenced in a fourfold degree from its feebleness and great susceptibility. ANATOMY OF THE REPRODUCTIVE ORGANS. Having now considered the functions and somewhat of the structures of the principal organs of reproduction, we may obtain a more definite idea of the relation of the several organs of each class by a connected review of the anatomy of the parts.