The external appearance of the private parts of a female, as given in the engraving, we will here particularize. The peculiar round and plump prominence at the lower extremity of the abdomen, is a thick layer of fatty matter over the pubic bone, called the Mons Veneris. This is usually covered with hair at the age of puberty. In some cases the hair grows very profusely, and to the length of six or eight inches. Others have but little hair, and some none at all. The growth of hair is usually considered the sign of womanhood, though it is really no proof of that condition. Many girls have a growth of hair over the Mons at the age of ten or eleven years, while the menstrual flow will not commence until some years after. The two outer lips of the part are also covered with hair. These are called Labia, and inside they have little glans or follicles which discharge a mucus of a peculiar smell, which is provided by Nature to keep the parts in health. Within these external lips or Labia, are smaller ones called the Nymphæ. In infants the Nymphæ can be plainly seen outside, as the Labia do not cover them; but as the child grows, the external lips gradually close, and in a perfectly-formed female, at the age of puberty, nothing can be seen but the outer lips, which are, or should be, hidden by the hair. At the upper junction of the Nymphæ is the Clitoris, a very curious formation which resembles a miniature male penis. This is an organ which, when irritated, causes sexual desires. It is usually about the size of a pea, though in some cases it is larger. The growth of the Clitoris to an unnatural size is what has given rise to a belief in the existence of hermaphrodites, or persons of double sex. I can easily understand how these reports originated. A female infant with a Clitoris of a very large size would naturally induce such a belief by persons ignorant of physiology—for the Clitoris is always proportionably a great deal larger before puberty—and particularly so when the child is first born. In an unnatural growth, then, of this member, the private parts of an infant would certainly present a hermaphroditic appearance. It is almost unnecessary to say that no such human beings ever existed as hermaphrodites. Those that have been so called were females with an enlarged Clitoris. This enlargement being a source of some mortification to the girl as she grows to womanhood, it should be partially amputated, an operation which can be performed with perfect safety. Young girls of amorous desires get up a sexual excitement, and produce masturbation, by rubbing the Clitoris; and in boarding schools they often practice the habit upon one another until they cause repeated Orgasms, and in this manner injure their health. Many of the diseases of after life may be traced to such unnatural pranks—particularly the weakness which causes miscarriage and excessive flooding. PHILOSOPHY OF SEXUAL DESIRES.