Answers problems of sex life in the delicate relations of marriage—Most people too timid to reveal reasons for their sexual difficulties—Knowledge in a book less embarrassing to gain—Never before could people find facts they wanted to know most—This book prepared especially to help husbands and wives to live wholesome sex lives—Gives them facts all married people should know—Explains how to use that information to make marriage a success—Especially valuable for newlyweds if read on honeymoon—Those now married who do not get on well together will find in this book relief from suffering and woe.

EXPLANATORY INTRODUCTION

Wrong teachings about sex—Children brought up in ignorance on sex matters—No information given by parents, schools, churches—But children will find out even if they go to wrong sources—Some one must tell the truth—This book does it.

THE ARGUMENT AND THE INFORMATION

Until recently it was a crime to give knowledge concerning sex relations—Sex knowledge denied through selfishness or prudery—This is wrong because sex is of highest importance to human beings—Ills, crimes, misfortunes are result when people are forced to be ignorant of knowledge they need—Condemned to suffer tortures when they might enjoy delights—Sex is clean and natural—At last sex knowledge may be given freely—Advice in this book gained from personal and professional experience.

THE CORRECT MENTAL ATTITUDE

Definite information now given which will help husbands and wives to find perpetual and increasing happiness all their lives—Duty of brides and grooms to acquaint themselves with each other's sexual needs—No man or woman should be ashamed of the sexual make-up—They should be proud of their sexual functions and virility—Read the book without shame or shock—Gaining honest truth about these matters is most essential to life.

THE SEX ORGANS

Male sex organs are penis and testicles—Size and form of penis when at rest and during sexual excitement—Position of testicles—Why one teste is larger—Pubic regions in men and women. Female sex organs are vulva, vaginal passage, womb, and ovaries—Length of vaginal passage compared with distended penis—Size and formation of womb—Position of ovaries.

FUNCTION OF THE SEX ORGANS

Primary purpose of sex in the human race—Life is the result of union of two forces—Birth the same in human beings as in other forms of life—Process of conception in female—How female ovum is fertilized by male—When puberty begins and ends in women.

Menstruation, its cause and meaning—When ovum may be impregnated—Origin of sperm in man—Purpose of prostate gland—What semen is—For birth of new life union of male and female sex organs necessary—Glans penis in man and clitoris in woman are "exciting" focal points—Climax of coitus.

Use of sexual organs to produce offspring same in mankind as in animals—One way in which human beings differ from animals in sex relations—Coitus possible in animals only in "rutting" season—In human beings coitus enjoyable at any time—What this difference means to happiness—The basis of real success in marriage—Married people can reach highest conditions of wedlock when they know and practice what is right in sex—No "rights" conferred in sex relations through the ceremony of marriage.

Different views of sexual relations for purpose of happiness—Padlocks to prevent exercise of sexual functions—Effect of falsehoods about sex relations—Innocent brides and goody-good husbands—Differences of opinion by brides and grooms lead to terrible wrongs on marriage night—False teaching often results in the "rape of the wedding night"—How definite knowledge prevents this shock to bride and makes for perfect bliss—The second kind of coitus reserved only for human beings can bring highest physical, mental, and spiritual well-being.

THE ACT OF COITUS

Coitus consists of four parts or acts—Where ninety-nine one-hundredths of all married troubles begin—Usually husband's fault due to ignorance or carelessness.

First part of act of coitus—Difference between men and women in time needed for sexual readiness—Women usually slower—Prostatic flow and precoital secretion—Coitus harmful when either partner not fully ready for sexual union—Taking time most important feature—Special information for newlyweds—Woman's fear of "something new" and of pregnancy—Husband should not insist upon "rights" —Evils which follow this wrong attitude—True marriage based on mutual love—Key to married happiness—Married love needs continual care by husband and wife—Instructions for performing first part of act of coitus.

Second part of act of coitus—Many positions possible—Best position—Instructions for performing second part of act of coitus.

Third part of act of coitus—A common mistake made by many wives, especially young brides—Need for complete freedom on part of woman—Length of time required—Skill and intensity needed by husband and wife—Instructions for performing third part of act of coitus.

Fourth and final part of act of coitus—When done correctly greatest of all human experiences—What happens to the man—What occurs in the woman—No connection with possibility of pregnancy—Designed by nature especially for woman's satisfaction and pleasure—Special instruction for husband and wife—Review of all the four parts of the act of coitus.

THE FIRST UNION

Special conditions which must be considered when bride is to have first sexual congress—Her state of mind—Need for better acquaintance—What both bride and groom should know about the woman's sex organs; where located, parts, how constructed, sensitivity—How shape and size of mouth indicate shape and size of woman's sex organs.

The hymen or "maidenhead"—Meaning of its presence or absence—How it may be removed without danger or pain—First union should be accomplished by mutual desire and effort—Chances of conception in coitus—Desire for children.

The right to have children when wanted—A matter of choice—Difference between infanticide, abortion and prevention of pregnancy—How husband and wife can tell when there is no danger of impregnation—A rule of coitus which should never be violated—What information about pregnancy may be gained from menstrual period—Most women have two weeks of "free time" each month—Freedom from fear an accomplishment which adds to