9. It is better for people not to marry until they are of proper age. It is a physiological fact that men seldom reach the full maturity or their virile power before the age of twenty-five, and the female rarely attains the full vigor of her sexual powers before the age of twenty. 10. ILLICIT PLEASURES.--The indulgence of illicit pleasures, says Dr. S. Pancoast, sooner or later is sure to entail the most loathsome diseases on their votaries. Among these diseases are Gonorrhoea, Syphilis, Spermatorrhoea (waste of semen by daily and nightly involuntary emissions), Satyriasis (a species of sexual madness, or a sexual diabolism, causing men to commit rape and other beastly acts and outrages, not only on women and children, but men and animals, as sodomy, pederasty, etc.), Nymphomania (causing women to assail every man they meet, and supplicate and excite him to gratify their lustful passions, or who resort to means of sexual pollutions, which is impossible to describe without shuddering), together with spinal diseases and many disorders of the most distressing and disgusting character filling the bones with rottenness, and eating away the flesh by gangrenous ulcers, until the patient dies, a horrible mass of putridity and corruption. 11. SENSUALITY.--Sensuality is not love, but an unbridled desire which kills the soul. Sensuality will drive away the roses in the cheeks of womanhood, undermine health and produce a brazen countenance that can be read by all men. The harlot may commit her sins in the dark, but her countenance reveals her character and her immorality is an open secret. 12. SEXUAL TEMPERANCE.--All excesses and absurdities of every kind should be carefully avoided. Many of the female disorders which often revenge themselves in the cessation of all sexual pleasure are largely due to the excessive practice of sexual indulgence. 13. FREQUENCY.--Some writers claim that intercourse should never occur except for the purpose of childbearing but such restraint is not natural and consequently not conducive to health. There are many conditions in which the health of the mother and offspring must be respected. It is now held that it is nearer a crime than a virtue to prostitute woman to the degradation of breeding animals by compelling her to bring into life more offspring than can be born healthy, or be properly cared for and educated. 14. In this work we shall attempt to specify no rule, but simply give advice as to the health and happiness of both man and wife. A man should not gratify his own desires at the expense of his wife's health, comfort or inclination. Many men no doubt harass their wives and force many burdens upon their slender constitutions. But it is a great sin and no true husband will demand unreasonable recognition. The wife when physically able, however, should bear with her husband. Man is naturally sensitive on this subject, and it takes but little to alienate his affections and bring discover into the family.