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CONTENTS
LESSON-1-2
LESSON-3
LESSON-4.1
LESSON-4.2
LESSON-5.1
LESSON-5.2
LESSON-6.1
LESSON-6.2
LESSON-7.1
LESSON-7.2
LESSON-7.3
LESSON-8
LESSON-9
LESSON-10.1
LESSON-10.2
LESSON-11
LESSON-12
LESSON-13.1
LESSON-13.2
LESSON-14
LESSON-15.1
LESSON-15.2
Contraception
The Sex Life of the Gods. Michael Knerr. CHAPTER-1
CHAPTER-2-3
CHAPTER-4
CHAPTER-5-6
CHAPTER-7-8
CHAPTER-9-10
CHAPTER-11-12
CHAPTER-13-14
CHAPTER-15-16
CHAPTER-17-18-19

LESSON VII 

 

PRE-NATAL INFLUENCES 

 

 

The term "Pre-Natal" of course means "before birth," and Pre-Natal 

Influences are those influences exerted upon the child before its birth 

into the world. The students of Eugenics are vitally interested in the 

subject of Pre-Natal Influences, as they recognize that therein is to be 

found the secret of much which will work along the line of "better 

offspring," and general race-betterment. 

 

Pre-Natal Influences (as the term is used in the present consideration 

of the subject) may be considered as manifesting in three phases, as 

follows: 

 

(1) The influence of the physical, mental, and moral "family 

characteristics" of the parents, transmitted to the child along the 

lines of heredity. 

 

(2) The influence of the acquired personal characteristics of the 

parents (particularly the acquired characteristics which are especially 

active at and just previous to the time of actual conception), 

transmitted to the child along the lines of heredity. 

 

(3) The influence of "maternal impressions" (after conception, and 

during the period of gestation or pregnancy) transmitted to the child 

physiologically and psychologically. 

 

I shall now ask you to proceed with me to a consideration of the various 

phases of Pre-Natal Influences coming under the above name three general 

classes, and the principal factors involved therein. 

 

 

Heredity in General. 

 

By "heredity" is meant "the tendency which there is in each animal or 

plant, in all essential characters, to resemble its parents"; or "the 

hereditary transmission of physical or psychical characteristics of 

parents to their offspring." 

 

There is a great disagreement among the authorities as to how far the 

principle of heredity really extends, and the real causes of heredity 

are in dispute. In the present consideration we shall, of course, pass 

over the technical phases of the subject, and shall touch only upon the 

general features and principles involved. 

 

Shute, in his work entitled "Organic Evolution," says: "That an 

offspring always inherits from its parents many of their characteristics 

is well known; that it always varies, more or less, from them, is also 

equally well known. Heredity and variation are twin forces that play 

upon every creature, holding it rigidly true to the parental type or 

compelling more or less divergence therefrom, according to the strength 

of the one or other power; so that every creature is the resultant of 

the activities of these two great parallel forces. Variation is 

co-extensive with heredity, and every living creature gives evidence of 


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