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Table of contents
PREFACE
INTRODUCTION
REPRODUCTION-1
REPRODUCTION-2
REPRODUCTION-3
ANATOMY OF THE REPRODUCTIVE ORGANS-1
ANATOMY OF THE REPRODUCTIVE ORGANS-2
ANATOMY OF THE REPRODUCTIVE ORGANS-3
ANATOMY OF THE REPRODUCTIVE ORGANS-4
THE SEXUAL RELATIONS-1
THE SEXUAL RELATIONS-2
THE SEXUAL RELATIONS-3
THE SEXUAL RELATIONS-4
THE SEXUAL RELATIONS-15
CHASTITY-1
CHASTITY-2
CHASTITY-3
CONTINENCE
MARITAL EXCESSES-1
MARITAL EXCESSES-2
MARITAL EXCESSES-3
PREVENTION OF CONCEPTION:ITS EVILS AND DANGERS-1
PREVENTION OF CONCEPTION:ITS EVILS AND DANGERS-2
INFANTICIDE AND ABORTION
THE SOCIAL EVIL-1
THE SOCIAL EVIL-2
THE SOCIAL EVIL-3
SOLITARY VICE-1
SOLITARY VICE-2
RESULTS OF SECRET VICE-1
RESULTS OF SECRET VICE-2
EFFECTS IN FEMALES
CURATIVE TREATMENT OF THE EFFECTS OF SELF-ABUSE-1
CURATIVE TREATMENT OF THE EFFECTS OF SELF-ABUSE-2
CURATIVE TREATMENT OF THE EFFECTS OF SELF-ABUSE-3
A CHAPTER FOR BOYS-1
A CHAPTER FOR BOYS-2
A CHAPTER FOR BOYS-3
A CHAPTER FOR BOYS-4
A CHAPTER FOR GIRLS-1
A CHAPTER FOR GIRLS-2
A CHAPTER FOR GIRLS-3
INDEX

accordingly made to correspond in time with the maturity of the egg 

and its aptitude for fecundation." 

 

"The egg, immediately upon its discharge from the ovary, is ready for 

impregnation. If sexual intercourse happens to take place about that 

time, the egg and the spermatic fluid meet in some part of the female 

generative passages, and fecundation is accomplished.... If, on the 

other hand, coitus do not take place, the egg passes down to the uterus 

unimpregnated, loses its vitality after a short time, and is finally 

carried away with the uterine secretions." 

 

"It is easily understood, therefore, why sexual intercourse should be 

more liable to be followed by pregnancy when it occurs about the 

menstrual epoch than at other times.... Before its discharge, the egg 

is immature, and unprepared for impregnation; and after the menstrual 

period has passed, it gradually loses its freshness and vitality." 

 

[Footnote 11: Dalton.] 

 

The law of periodicity, as it affects the sexual activity of males of 

the human species, is indicated in the following remarks by the same 

author:-- 

 

"The same correspondence between the periods of sexual excitement in 

the male and female, is visible in many of the animals [higher mammals], 

as well as in fish and reptiles. This is the case in most species which 

produce young but once a year, and at a fixed period, as the deer and 

the wild hog. In other species, on the contrary, such as the dog, the 

rabbit, the guinea-pig, etc., where several broods of young are 

produced during the year, or where, as in the human subject, the 

generative epochs of the female recur at short intervals, so that the 

particular period of impregnation is comparatively indefinite, the 

generative apparatus of the male is almost always in a state of full 

development; and is excited to action at particular periods, apparently 

by some influence derived from the condition of the female." 

 

The facts presented in the foregoing quotations from Dr. Dalton may 

be summarized as follows:-- 

 

1. The sexual function is for the purpose of producing new individuals 

to take the place of those who die, and thus preserve the species from 

becoming extinct. 

 

2. In the animal kingdom generally, the reproductive function is 

_necessarily_ a periodical act, dependent upon the development of the 

reproductive organs of both the male and the female at stated periods. 

 

3. In those exceptional cases in which the organs of the male are in 

a state of constant development, sexual congress occurs, in lower 

animals, only at those periods when the periodical development occurs 

in the female. 

 

4. Fecundation of the female element can only take place about the time 

of periodical development in the female. 

 

5. The desire for sexual congress naturally exists in the female only 

at or immediately after the time of periodical development. 

 

6. The constant development of the sexual organs in human males is a 

condition common to all animals in which development occurs in the 

female at short intervals, and is a provision of nature to secure a 


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