SAND DUNES AND SALT MARSHES 



kimo and the Indian, althougli both mani- 

 festly of Eastern origin, so dislike each other 

 that intermarriage, except imder the influence 

 of civilization, is rare. This tendency makes 

 of course for differentiation; without this 

 tendency the constant mixture of races would 

 make the production of new species more dif- 

 ficult. While this clannishness is most marked 

 among savages, it is also so pronounced among 

 civilized races that each nation classes all 

 foreigners, especially those that speak a dif- 

 ferent tongue, as their inferiors, with w^hom 

 intermarriage is not to be thought of. The 

 more ignorant the individuals, that is to say, 

 the more primitive or animal-like, the more 

 intense is this clannishness, and its bounda- 

 ries may be limited, not by the nation or state, 

 but even by the village in which the individ- 

 uals live. Mr. Punch's collier, who proposed 

 ** 'eaving 'alf a brick " at the stranger in 

 town, is an instance in point. 



The element of home also enters into this 

 exclusiveness which favors the formation of 

 races, and hence of new species. This factor 

 is strongly shown in the human species unless 

 the individual has become cosmopolitan by 

 travel and education; and the inhabitants of 



294 



