INTERESTING FAILURES 183 



family comprises widely divergent races, and it 

 is scarcely open to question that the divergences 

 in many cases are so pronounced as to make 

 hybridization between these races inexpedient, 

 even though still possible. 



The student of history tells us that the great 

 civilized races of the past were all mixed races. 

 This was true of the Egyptians, the Babylonians, 

 the Greeks, and the Romans. It is true of the 

 chief nations of to-day. 



But the races that intermingled to produce 

 the great peoples have always been somewhat 

 closely related. Xo permanent good result has 

 been generally achieved, for example, by the 

 commingling of Mongolian and Aryan blood, 

 or of Aryan with Xegro. Such wide crosses 

 must be expected to produce at least a measure 

 of infecundity, and a commingling of racial 

 tendencies too divergent to be advantageously 

 blended. 



The case is comparable to that of the Paradox 

 walnut, even though it be not quite so extreme 

 as the case of the hybrid strawberries and dew- 

 berries. 



But what chiefly concerns us now is not the 

 past history of mankind, but the present and 

 future history; and in particular the history of 

 mankind here in America. There is taking" place 



