“Why was not this book written centuries ago?” Anthony Comstock “It lifts the mind and thoughts upon a high and lofty plane upon delicate subjects.” Edward W. Bok “It has appealed to me in a way which no other book of its kind has.” Bishop John H. Vincent, D.D., LL.D. “You have handled with great delicacy and wisdom an exceedingly difficult subject.” John Willis Baer “I feel confident that it can do great good, and I mean that my boys shall have the contents placed before them.” Mrs. Mary A. Livermore, LL.D. “Full of physiological truths, which all children ought to know, at a proper age; will be read by boys without awakening a prurient thought.” Josiah Strong, D.D. “A foolish and culpable silence on the part of most parents leaves their children to learn, too often from vicious companions, sacred truth in an unhallowed way.” * * * * * “What a Young Man Ought to Know.” BY SYLVANUS STALL, D. D. Condensed Table of Contents STRENGTH The value of physical strength—The weak man handicapped—Threefold nature of man—Relation of the physical, intellectual and moral—Impair one, you injure all—The physical foundation—Man’s strong sexual nature—Sexuality strongly marked in all great men—Importance of manly mastery of sexual nature—Personal purity—Only one moral standard for men and women. WEAKNESS Inherited weakness—How overcome—Acquired weakness—How produced—The effects of secret vice—What should be done—Losses in sleep—When to consult a physician—Danger from quacks and charlatans—What are normal and abnormal losses—Medical authorities quoted—Subject illustrated—Important directions. SOCIAL VICE Alarming ignorance concerning the diseases which accompany vice—Why physicians do not acquaint their patients with the nature of these diseases—The prevalence—All forms of venereal diseases leave terrible results—Character and consequences of gonorrhœa—Later complications—Chordee, stricture, blindness, etc.—How healthy brides become early and permanent invalids—Chancroid and chancre—The primary, secondary and tertiary forms of syphilis—The beginning, progress and end—Can it ever be cured—May the man ever marry—Effects upon wife and children. THE REPRODUCTIVE ORGANS Their purpose and prostitution—Marriage a great blessing—Difference between creation and procreation—All life from the seed or the egg—The reproduction of plants, fishes, birds and animals contrasted—An interesting study. MAN’S RELATION TO WOMAN