Distribution and 



Origin of life in 



America 



ROBERT FRANCIS SCHARFF 



Ph.D., B.Sc. ^ 



Author of "European Animals, their Geological History and Geographical Distribution." 



Corresponding Member of the Academy of Natural Sciences, Philadelphia; 



of the Senckenberg Natural History Society, Frankfurt ajMain ■ 



of the Linnean Society of Bordeaux ; and of the 



Anthropological Society of Paris 



LONDON 



CONSTABLE & COMPANY LTD 



10 ORANGE STREET LEICESTER SQUARE WC 

 1911 



_J>^/ 



