VIII 



THE HUMAN EACES 



375 



possessed by all races, at least as far as the general tendencies of 

 the mind and their adaptation to conditions compatible with 

 civilisation are concerned." 



The monogenism advocated by Morselli is not, however, 

 absolute, but modified in so far as he admits that one primitive 

 form gave birth to various species ; it is a polyphiletic monogenism. 

 He writes : " The existence of human forms differing specifically 

 from the one in existence at present, which became extinct during 







FIG. 141. Dravidian Mandracian (Notanthropus eurafricanus dravidicus). (G. Sergi.) 



the palaeo-quaternary ages, is no proof that living man who has 

 survived the latest geological vicissitudes is a whole made up of 

 various species ; can we deny the specific limitations of the living 

 horse and the orang-outang, because the American horse and the 

 Palaeopithecus sivalensis have ceased to exist? Monogenists of 

 to-day may perfectly well affirm that Homo is a genus of which 

 several species have become extinct, and only one has survived ; 

 without, however, denying that this species may have originated 

 after or at the same time as sub-specific varieties of a single type 

 in places which, though at no great distance from one another 



