THE PERIOD OF PUBERTY IN THE FEMALE. SYMPTOMS OF BEGINNING MENSTRUATION.--At about the age of fourteen these changes begin to give evidence of existence. They affect the girl's whole system and the mother must be especially patient and sympathetic. Her disposition may change, she may want to be alone, and she may be more or less melancholy. She will be dissatisfied with the things that previously interested her. She will tire easily, and she may have many spasmodic pains from time to time. The wise mother will tactfully see that she takes plenty of nourishing food and systematic exercise, and that she gets enough sleep in a well-aired room. There are other physical changes which are observable at this age. The girl grows taller, the figure broadens out, the hips widen, the bust enlarges, and the waist line increases in size. These are all part of the great change from girlhood to womanhood. CHANGES IN THE REPRODUCTIVE ORGANS.--The principal change takes place in the reproductive organs themselves, and it is very essential that she should have a clear mental picture of just what is meant by "reproductive" organs and their location in her body. We mean by this term the group of organs which are concerned in creating and nourishing a child until it is old enough to be born into the world. THE FEMALE GENERATIVE ORGANS.--These organs are the womb or uterus, two ovaries, two fallopian tubes and the vagina. The womb or uterus is the "nest." It is about the size of and is shaped like a pear. It is hollow, however, though its walls are quite thick. The ovaries are about the size of a peach stone and lie at the side of the womb,--one on either side. The fallopian tubes connect the ovaries with the womb. The vagina connects the womb with the outside world,--it is sometimes known as the birth canal. In the very lowest part of the abdomen, or belly, in front, is the bladder, which collects the urine until it is necessary to pass it out. In the back part of this region is the rectum; it collects all the undigested food, etc., from the intestinal canal. Between these two,--the bladder and rectum,--we find the reproductive organs, the womb, ovaries and vagina, described above. THE FUNCTION OF THE REPRODUCTIVE ORGANS.--It will be difficult, even for mothers, to acquire a clear understanding of the function of the reproductive or generative organs. It is an exceedingly interesting process, however, and it is well worth a patient, attentive study to clearly understand the brief description we give of it. If you acquire a distinct mental picture of the problem you will be able to tell your daughter a story that will be of intense interest to her, and a tale that is interesting is impressive and is productive of thought and reflection. That is the condition of mind we want daughters to be in when they hear this story.