When we speak of puberty it is necessary to have some knowledge of the organs of reproduction and their structure. So far the physiology taught in the public schools has not treated of these organs. In order to get books on this subject a girl is met with the question: “Are you a nurse or physician?” If not the books are denied her. Consequently the average girl is kept in ignorance of the function of these organs, and is at a loss to know where to go for clean information. It is necessary, therefore, to give this information here, without mincing words, if there is any benefit to be derived from the following subject. It is very simple for the girl to learn the correct names of these organs and call them by such names. They are the ovaries, fallopian tubes, uterus, vagina and breasts. The breasts were not always classed as reproductive organs, but later writers recognize their relation to them, and as such they are now included. Let us first take the ovaries, which are two small [Illustration: FIG. I. UTERUS—TUBES AND OVARIES. ] To the right the ovary and tube have been laid open. a—Uterus. b—Ovary. c—Fallopian Tube. glands about the size and shape of an almond, placed one on each side of the extreme lower part of the woman's abdomen. They are imbedded in large ligaments and tissues which also help to hold the uterus (the womb) in place. Inside the ovaries are thousands of little eggs called ovules, which have been there since the birth of the girl. It is claimed there are from twenty to fifty thousand ovules in the ovary at birth. The work of the ovary is to develop and mature these eggs, and send them on to be fertilized. At the time of puberty, these eggs are all in different stages of development. Those in the center of the ovary ripen first and burst through the outer cover of the ovary (which is like a capsule and at the time of menstruation becomes swollen and congested). The ovule is caught by the fringy ends of the fallopian tubes which are in a constant lashing motion, which motion sends the egg through the tube to the uterus. The fallopian tubes are about four and one-half inches in length and join the ovaries to the upper and outer angle of the uterus. Its duties are to convey the ova from the ovary to the uterus. Sometimes the sperm cell from the male comes up into the tube to meet the egg and it is fertilized here. The union of the two cells usually occurs in the outer end of the fallopian tube; but this is not the nest nature has prepared for the egg's development, and unless it returns into the uterus it causes serious trouble and an operation is necessary. Impregnation in the tube is very rare, but it is possible.