REPRODUCTION IN MAN IO3 



is due to syphilis. It is also well to remember 

 that there is no cure for a human being rendered 

 insane by this cause. Nearly all infant blindness 

 is due to the infection of the eye of the child at 

 birth with the germs of a venereal disease. There 

 is nothing in the whole realm of knowledge that 

 has such a cruel, persistent and far-reaching effect 

 as venereal disease ; and there are but few ways in 

 which Biology has contributed more to the possi- 

 bilities for human happiness and welfare than in 

 its revelations in this regard. 



It is wrong to assume that all cases of sterility 

 are due to disease, for scientific studies have been 

 made which clearly indicate that sterility is a rela- 

 tive term and that every degree and gradation 

 between high fertility and complete sterility exist 

 in both man and woman. This variable condition 

 is due to incomplete development, autointoxication 

 and other causes that the physician can usually 

 correct. 



It is very difficult to prescribe in a general way 

 for this normal and natural activity of our bodies. 

 Temperament and temptations are never exactly 

 the same for two persons. Knowledge of the 

 significance of the organs of generation and of the 

 dangers from their abuse will not entirely protect 

 nor prevent boys and girls from immorality. 

 There must go with this necessary knowledge a 



