248 INBREEDING AND OUTBREEDING 



As an outcome of these conditions, the world faces in- 

 creasing amounts of race amalgamation, and there is 

 naturally an acute interest in race problems. The greater 

 part of this interest is due to prejudice arising from 

 racial and national arrogance. Normally each sub-race 

 believes implicitly in its own superiority and hopes for 

 continued increase and ultimate survival. Perhaps such 

 prejudice prevents any wholly objective discussion of the 

 matter. But apart from desires and hopes concerning 

 racial domination, it ought to be possible to set forth the 

 facts as they are and to determine roughly what ought to 

 occur under given conditions. 



In order that there shall be no misunderstanding in 

 regard to the premises taken, let us first consider the 

 classification of man from the anthropological and from 

 the genetic viewpoints. 



Anthropologists have been confronted with the very 

 difficult task of classifying existent peoples both with the 

 view of furnishing a useful nomenclature and for the pur- 

 pose of solving problems of descent. They have recog- 

 nized the insubstantial character of a language or a 

 nationality basis and have founded their systems on 

 physical traits. Even these, head form, hair shape, skin 

 color, stature, and so on, have been freely acknowledged 

 to be less satisfactory than might be desired. Neverthe- 

 less the systems in vogue have been serviceable in many 

 ways, and it is only when they are used as quantitative 

 measures of ancestry that the geneticist is inclined to raise 

 certain objections. 



The difficulties of the anthropologist are relatively 

 much greater than those of other systematists. Inter- 

 group sterility is a great aid to botanists and zoologists. 



