and other educational institutions. "The world do move!"

It is for these reasons—because it is right to transfer to you and to those who come after, the sex knowledge that has been acquired by the author, by reading scientific and professional literature upon the subject, by conference with men and women who know, and by personal and professional experience, that what follows is written.

III

THE CORRECT MENTAL ATTITUDE

So much by way of general remarks regarding the subject in hand. It is more the especial purpose of what follows, however, to treat of the matter of marriage in particular, to say something definite to young husbands and wives that shall be of real benefit to them, not only by way of starting them out right in the new and untried way upon which they have entered, but to help them to make that way a realm of perpetual and ever increasing joy to both parties concerned, throughout its entire course, their whole lives long.

Be it said, then, first, that it is the duty of every bride and groom, before they engage in sexual commerce with each other, to acquaint themselves thoroughly with the anatomy and physiology of the sex organs of human beings, both male and female, and to make the acquirement of such knowledge as dispassionate and matter-of-fact an affair as though they were studying the nature, construction and functions of the stomach, or the digestive processes entire, or the nature and use of any of the other bodily organs. "Clear and clean am I within and without; clear and clean is every scrap and part of me, and no part shall be held more sacred or preferred above another. For divine am I, and all I am, or contain."

Now the normal young man or woman would do just this, would pursue a study of sex in this way, were it not for the fact that they have been taught, time out of mind, that to do this is immodest, not to say indecent or positively wicked. They have longed to be possessed of such knowledge, all their lives; in most cases more than any other form of wisdom that it was possible for them to make their own. But its acquirement has been placed beyond their possible reach, and it is only by the most clandestine and often nasty means that they have attained what little they know. But the quotation made in the last paragraph, sounds the key note of what is right in this matter, and the first effort made by the reader of these pages should be to establish in himself or herself the condition of mind which these lines embody.

And it had better be said, right here, that for most young people this will be found to be no easy thing to do. Nor should the reader feel ashamed or chagrined, or at odds with himself or herself if he or she finds such condition of affairs existing in his or her case. For it is nothing for which they are to blame. It is a misfortune and not a fault. It is only the result of inherited and inculcated (the word inculcated means kicked in) ideas to which all "well bred" youths have been subjected for centuries; the idea being that the closer they were kept in the realm of innocence, which is only another name for ignorance, the better "bred" they are. And to pry one's self loose, to break or tear one's self away from such a mental view and condition as heredity and such years of rigorous restraint have developed, is no small task. Indeed, it often takes months, and sometimes years, wholly to rid one's self of these deep seated and powerful, wrong views and prejudices.

Remember this: that to the pure all things are pure. But do not make the mistake of thinking that this much abused sentence means that purity means emptiness! It does no such thing. On the contrary, it means fullness, to perfection. It means that one should be possessed of the right kind of stuff, and that the stuff should be of supreme quality. So, in studying to obtain a knowledge of sex organs and sex functions, in the human family, the reader should not try to divest himself or herself of all sex-passion and desire; but, on the contrary, to make these of a sort of which he or she can be proud, rather than ashamed of, rejoice in, rather than suffer from.

So, then, let the reader of these lines, first, get a correct mental attitude toward what is about to be said. Banish all prurient curiosity, put aside all thought of shame or shock, (these two will be hardest for young women to overcome, because of their training in false modesty and prudishness) and endeavor to approach the subject in a reverent, open-eyed, conscientious spirit, as one who wishes, above everything else, to know the honest truth in these most essential matters that pertain to human life. Get into this frame of mind, and keep in it, and what is here written will be read with both pleasure and profit.

Once more, for we must make haste slowly in these delicate affairs, if the reader should find himself or herself unduly excited, or perhaps shocked, while reading some parts of what is here written, so that the heart beats too fast, or the hand trembles, it may be well to suspend the reading for a time, divert the mind into other channels for a while, and resume the reading after one has regained poise and mastery of one's self. That is, "keep your head" while you read these lessons, and you will be all right.

IV

THE SEX ORGANS

And now, having given these cautionary directions, the way is clear for the making of definite statements and the giving of positive instruction.

Here, then, is a brief description of the sex organs in man and woman. At first, only the names of the parts will be given, with such slight comments and explanations as are necessary for making this part of the subject clear. A detailed setting forth of the functions and proper exercise of these organs will be given later.

The sex organs in a male human being consists, broadly speaking, of the penis and the testicles. All these are located at the base of the abdomen, between the thighs and on the forward part of the body. The penis is a fleshy, muscular organ, filled with most sensitive nerves, and blood vessels that are capable of extension to a much greater degree than any of their similars in other parts of the body. In a quiescent, or unexcited condition, in the average man, this organ is from three to four inches long and about an inch or more in diameter. It hangs limp and pendent in this state, retired and in evidence not at all. In its excited, or tumescent condition (the word tumescent means swelled, and is the technical word for describing the erect condition of the penis) it becomes enlarged and rigid, its size in this state being, on an average, six or seven inches long, and from an inch-and-a-half to two inches in diameter. It is almost perfectly cylindrical, slightly thicker at the base than at its forward part.

The testicles are two kidney shaped glands, not far from the size of a large hickory nut, and are contained in a sort of sack, or pocket, called the scrotum, which is made for their comfortable and safe carrying. The scrotum hangs directly between the thighs, at the base of the penis, and in it are the testicles, suspended by vital cords that are suspended from the body above. The left testicle hangs a little higher in the sack than the right, so that, in case the thighs are crowded together, one testicle will slip over the other, and so the danger of crushing them will be avoided. This is one of the many ways which the Maker of the human body has devised to insure the proper