5.  NO REAL BLESSING.—­Where one parent is consumptive and the other vigorous, the chances are just half as great.  If there is a scrofulous or consumptive taint in the blood, beware!  Sickly children are no comfort to their parents, no real blessing.  If such people marry, they had better, in most cases, avoid parentage.

6.  WELFARE OF MANKIND.—­The advancement of the welfare of mankind is a most intricate problem:  all ought to refrain from marriage who cannot avoid abject poverty for their children; for poverty is not only a great evil, but tends to its own increase by leading to recklessness in marriage.  On the other hand, as Mr. Galton has remarked, if the prudent avoid marriage, while the reckless marry, the inferior members will tend to supplant the better members of society.

7.  PREVENTIVES.—­Remember that the thousands of preventives which are advertised in papers, private circulars, etc., are not only inefficient, unreliable and worthless, but positively dangerous, and the annual mortality of females in this country from this cause alone is truly horrifying.  Study nature, and nature’s laws alone will guide you safely in the path of health and happiness.

8.  NATURE’S REMEDY.—­Nature in her wise economy has prepared for overproduction, for during the period of pregnancy and nursing, and also most of the last half of each menstrual month, woman is naturally sterile; but this condition may become irregular and uncertain on account of stimulating drinks or immoral excesses.

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THE GENERATIVE ORGANS.

[Illustration:  THE MALE GENERATIVE ORGANS AND THEIR STRUCTURE AND ADAPTATION.]

1.  The reproductive organs in man are the penis and testicles and their appendages.

2.  The penis deposits the seminal life germ of the male.  It is designed to fulfill the seed planting mission of human life.

3.  In the accompanying illustration all the parts are named.

4.  URETHRA.—­The urethra performs the important mission of emptying the bladder, and is rendered very much larger by the passion, and the semen is propelled along through it by little layers of muscles on each side meeting above and below.  It is this canal that is inflamed by the disease known as gonorrhoea.

5.  PROSTATE GLAND.—­The prostate gland is located just before the bladder.  It swells in men who have previously overtaxed it, thus preventing all sexual intercourse, and becomes very troublesome to void urine.  This is a very common trouble in old age.

6.  THE PENAL GLAND.—­The penal gland, located at the end of the penis, becomes unduly enlarged by excessive action and has the consistency of India rubber.  It is always enlarged by erection.  It is this gland at the end that draws the semen forward.  It is one of the most essential and wonderful constructed glands of the human body.