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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

of development within the ovary of the hen. It had a head, a rudimentary 

brain, and internal viscera, but no feathers nor limbs. It was, in fact, 

an egg hatched before it had been laid. The anomaly excited much 

interest at that time and since among biologists.] 

 

The Uterus.--This is a hollow, pear-shaped organ, located in the median 

line, just behind the bladder, between it and the rectum. It is 

supported in place by various ligaments and by the juxtaposition of 

other organs. Its larger end is directed upward, and communicates upon 

each side with a very narrow tube which is prolonged outward on either 

side until it nearly touches the ovary of the same side. Its lower and 

smaller end fills the internal extremity of the passage previously 

described as the vagina. When an ovum is matured, it escapes from the 

ovary into the narrow tube referred to, called the _Fallopian tube_, 

and passes down into the cavity of the uterus. If fecundation does not 

occur, it is expelled or absorbed after six to twelve or fourteen days. 

If copulation occurs, however, zoosperms are brought into the cavity 

of the uterus, and, coming in contact with the ovum, fecundate it. This 

is _conception_. When the natural process is allowed to proceed, 

development occurs. 

 

Uterine Gestation.--This is the term applied to the process last 

referred to. We shall not attempt to describe in detail this most 

wonderful and intricate of all living processes; but will sketch only 

the chief points, leaving the reader who would obtain a more complete 

knowledge of the subject to consult any one of the numerous 

physiological and obstetrical works which deal with it in a very 

exhaustive manner. 

 

As soon as the ovum is impregnated by the male element, it begins a 

process of symmetrical division. The first division produces two cells 

out of the single one which first existed. By the next division, four 

segments are produced; then eight, sixteen, etc. While this process 

is going on, the ovum becomes adherent to the internal wall of the uterus, 

and is soon enveloped by its mucous membrane, which grows up about and 

incloses it. 

 

The Primitive Trace.--When the process of segmentation has advanced 

to a certain point, the cells are aggregated together in a compact layer 

at the surface. Soon a straight line appears upon this layer, which 

is called the _primitive trace_. This delicate line becomes the basis 

for the spinal column; and upon and about it the whole individual is 

developed by an intricate process of folding, dividing, and 

reduplication of the layer of cells. One end of the line becomes the 

head, and the other becomes the tail. Even man has a caudal appendage 

at an early stage of his existence. After a further lapse of time, little 

excrescences, buds, or "pads," appear in the proper positions to 

represent the arms and legs. After further development the ends split 

up into fingers and toes, and by the continued development of the parts, 

perfect arms and legs are formed. 

 

Curious Relation to Lower Animals.--It is a very remarkable fact that 


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