HUMAN RACES 1 59 



Precisely such phenomena took place within all the large 

 political units or nations that exist today. Every one, 

 without exception, is the resultant of the merging of various 

 racial elements, and each one may now be seen to be 

 approaching, more or less, a recognizable new type of its 

 own, e.g. the Spanish, Italian, French, German, English, 

 and even the American. These new types are of the order 

 of nascent races. Could any of these nations exist for some 

 milleniums without further material accretions from the 

 outside, the strong probability is that a definite new second- 

 ary race would be established. 



Human raciation of the present is one of the plainest 

 and most generalized evidences of continuing human 

 evolution. 



RACE CHARACTERS 



The characters that distinguish human races are morpho- 

 logical, physiological, chemical, psychological, and even 

 pathological. They occur in more or less of correlations, but 

 there are numerous and in instances important exceptions 

 in this respect. 



The principal physical differences in human races are 

 those of color, nature of the hair, characteristics of the 

 skull, face, eyes and nose, stature, relative lengths of the 

 long bones, and of teeth, especially incisors. Important 

 differences exist in the brain, internal organs and many 

 other parts, but these largely await further investigation. 



The main Junctional racial differences, so far as known, 

 are those in pulse, temperature and eruption of the teeth. 

 There are doubtless many others; but here once more a great 

 deal remains to be learned through further research. Demo- 

 graphic differences belong to this section. 



Chemical racial differences are manifest in the blood, in 

 sweat, and inferentially in the various immunities. Almost 

 nothing is known as yet of probable differences in the various 

 internal secretions, and elsewhere. Here too remains a great 

 field for future studies. 



The mental differences between the races, numerous and 

 in some cases important, elude thus far direct and precise 

 specification or determination. Sensory differences exist. 



