3. In the same number of days after conception the discharge no longer takes its usual course, but is turned towards the mammæ, in which the milk begins to make its appearance. At first the milk appears very small, and like a web in the mammæ. After conception, the first sensation generally takes place in the iliac region, which immediately appears more full in some persons. This is more conspicuous in slight persons. If the child is a male, a movement is usually felt on the right side of the groin, in about forty days; if a female, the movement occurs on the left side, in about ninety days. We must not suppose, however, that an accurate judgment can be formed in this way, for it often happens that the movement is felt on the right side when a female child, and on the left when a male child is conceived. All these, and such like things, vary in a greater or less degree. 4. About this period, also, the fœtus becomes divided; it previously existed as an undivided mass of flesh. If it perishes within seven days, it is called an effluxion; if in forty days, an abortion. The fœtus often perishes within this period. If the male fœtus is excluded within forty days, and is put out into any other fluid, it becomes dissolved, and disappears. If placed in cold water, it becomes, as it were, surrounded with a membrane. When this is taken off, the fœtus appears about as large as a large ant. Its parts are visible, both those of generation, and all the rest; and the eyes are very large, as in other animals. If the female fœtus perishes within the three months, it generally appears without divisions. If it survives to the fourth month, the parts appear formed. 5. The whole completion of the parts is more slow in the female than in the male, and parturition is more frequently delayed to the tenth month. After birth, females attain to youth, and puberty, and old age, more rapidly than males, and those that have borne many children more rapidly than others, as it was observed before. CHAPTER IV. 1. When conception has taken place, the uterus usually closes immediately for seven months. In the eighth month it opens, and the fœtus, if properly developed, begins to descend in the eighth month. If the fœtus is not properly developed, but checked in the eighth month in parturition, women who bear in the eighth month do not exclude it, nor does the fœtus advance downwards in the eighth month, and the uterus does not open itself. It is a sign that it is not properly developed, when it is born before the circumstances I have described take place.