CONTROL OF HEREDITY: EUGENICS 401 



view of such a matter, though I suppose there 

 would be little question on the part of any 

 well informed person that the white and yel- 

 low types have contributed most to what we 

 call civilization. Nevertheless every race 

 probably has good qualities which could be 

 made of service to society. The various races 

 of cattle, horses, sheep, etc., are all useful to 

 man, but in various ways and degrees, and the 

 same is true of various races of men with re- 

 spect to civilization. In general the dominant 

 races are the most capable intellectually and 

 socially, while those which have been left be- 

 hind or have been eliminated have been the 

 less capable races. And yet some very good 

 types, possibly with capacities for high social 

 and intellectual development, have been com- 

 pletely exterminated, as for instance the Luca- 

 yan Indians of the West Indies, and the 

 aborigines of Tasmania. 



Few animals have suffered such wholesale 

 destruction as have the more primitive races 

 of men in different parts of the earth. Several 

 species of man have become entirely extinct, 

 leaving only, as is generally believed, a single 



