he finds this to be proportional to misunderstanding of 

 the facts, for when the evidence is produced Pelion piled 

 on Ossa any lingering doubts the observer might have 

 are crushed by an irresistible weight of testimony. After 

 all, our kind is but one of the many hundreds of thousands 

 of living species; and viewing the matter from the calm, 

 impersonal standpoint of scientific study, the fact that he 

 is himself a human being does not distort the investigator's 

 vision, for his perspective is corrected and rectified by the 

 instruments of scientific method. He finds no difficulty 

 in accepting human evolution as a scientific fact that is, 

 true as far as science goes. 



IN extending its broad comparative studies into the field 

 of complex and intricate human nature, zoology touches 

 numerous other sciences that might seem at first sight to be 

 entirely independent, or at the most only casually con- 

 nected with it. I shall venture to point out where analysis 

 within the field of zoology has produced results which have 

 a high and immediate value for students of anthropology, 

 psychology, sociology and ethics. 



When they deal with the evolution of the human species 

 from pre-human animals, the anthropologist and the 

 zoologist are brought by their similar interest upon com- 

 mon ground; and when they pass on to explore the field 

 of human diversity where lie the complex problems of 

 racial evolution, they are still fellow-workers, for in the 

 case of physical anthropology of human races at least the 

 methods are the same which are employed in zoology gen- 

 erally. Of course it would be absurd for anyone to contend 

 that all the problems of anthropology are strictly zoologi- 

 cal questions; to qualify here an investigator must be 

 familiar with linguistics, racial customs and beliefs, and 

 many subjects that are as such apparently outside the 



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