THE VARIETIES OF THE HUMAN SPECIES. 6 1 



method, and the anthropologist is a naturalist who is occupied 

 exclusively with man. 



I consider it useful and opportune to prepare catalogues of the 

 varieties and subvarieties, and to record the geographical distri- 

 bution of forms; they are pictures which render two facts evident, 

 the number of ethnic elements and their dispersion. 



I hope by this method and by these principles a systematic 

 anthropology may be constituted, which may be the foundation 

 for scientific researches upon the origin of human races, upon 

 their number and distribution, upon their crossings, and, finally, 

 upon the possible solution of the problems of the unity or plur- 

 ality of the species. 



