98 MAN, — THE ANIMAL 



now that science has supplied these essential facts, 

 what shall be done, when shall it be done and how 

 shall it be done? These are questions of great im- 

 portance and the answers given at this time may 

 have to be altered with the accumulation of more 

 information. 



The following facts help us to know when sex 

 instruction should begin. Dr. Exner made a 

 study of 948 college men and the results are 

 charted as follows : 



THE AGE OF FIRST PERMANENT IMPRESSIONS 

 REGARDING SEX 



chart lines 



The average age at which 637 men received their first sex 

 impressions was 9.6 years. 



THE AGE OF FIRST PROPER SEX INSTRUCTION 



The average age at which 727 men received instruction about 

 sex from wholesome sources was 15.6 years. 



