he vagina, i (fig. 2), extends vibram five fingers from the external shape, the labia jmdendi, to the mouth of the womb, b ; it is placed at the lower part of the pelvis, and has the rectum above it, and receives inferiority the opening of the urinary bladder, h; previous to parturition its walls become flaccid, and its inner surface is bedewed with a copious mucous secretion to favour the passage of the foetus. In the act of coition the intromittent organ of the male is placed within the vagina, and is thus brought in contact with the mouth of the womb, vibram fivefingers by which means the fecundating fluid is conveyed into that organ.The uterus, or womb, a, is held in its situation chiefly by the broad ligaments, ff; at its anterior part its coats are continuous with the va?ina, and posteriorly it is divided into the two horns, c c, vibram five fingers shoes which have attached to their extremities the Fallopian tubes, d d, and connected with these are the ovaries, e e. During the period of gestation the os uteri (mouth of the womb) remains closed; but at the time of parturition it is widely dilated, thus forming a free and open passage from the vagina to the interior of the uterus. The coats of the uterus are three, and are united to vibram five fingers sale each other by areolar tissue: the external or serous coat is smooth and continuous with the lining membrane of the abdomen ; it gives support to the viscus, and by its reflections forms the two broad ligaments. The middle or muscular coat varies considerably five fingers shoes in strength and thickness, referable to impregnation or non-impregnation; it is thin and comparatively weak in the latter case, and its fibres, which interlace each other in every direction, become greatly increased during gestation. On the muscular coat the expulsion of the foetus from the uterus in delivery partlv depends. The internal or mucous coat has a velvety appearance, and it secretes the menstrual fluid; but its principal use in the lower animals is to form Mbt shoes clearance sale a bond of connexion between the mother and her young ones, by which their vitality is preserved and their development effected.We will now add a few remarks on the causes of oestrum, impregnation, and the development of the foetus. The term oestrumis employed to designate that condition of the female which shows her fitness and desire for the male. Its early or late appearance is governed by a variety of external circumstances. It is associated with puberty, and passes off on the approach of old age. In some of our improved breeds of cattle, especially when well kept and tended, oestrum comes on very early in life, and in such instances the animal often conceives when she is little more than a year old. These early conceptions, however, too frequently prove injurious, by interfering with the development of the frame of the female, and also by deteriorating the quality of her offspring. Domestication, with its ordinary accompaniments, exerts a considerable stimulating influence on the generative system ; thus some animals which in a state of nature produce but one litter a year, will, when domesticated, bring forth several: such are the dog and pig.