EVOLUTION OF MAN 167 



The position of the legs after birth is, however, probably 

 largely due to the prenatal folded position of the legs. 



We might develop to an indefinite extent these points 

 of anatomical and embryological resemblance between man 

 and other vertebrates. The character of the evidence, how- 

 ever, has been sufficiently illustrated. I know of no scien- 

 tific reason for separating man from the rest of the animal 

 kingdom as regards the processes of evolution. His whole 

 structure shows that he has arisen by differentiation from 

 lower vertebrates. We do not understand all the stages 

 by which his body has been thus evolved, nor do we know 

 in detail by what steps his mental faculties have arisen from 

 the lower condition of mind seen in other vertebrates; yet 

 we have, apparently, no reason for believing that the method 

 of their evolution has been different in any fundamental 

 regard from the methods by which the minds and bodies 

 of other animals have been developed. Comparative psy- 

 chology is as yet in its infancy, and we are not at all pre- 

 pared to discuss the relations between the mind of man 

 and the minds of lower animals, much less to attempt to 

 describe the steps in the evolution of the human mind. We 

 must wait a good many years before our curiosity in this 

 regard can be satisfied. There appears, however, no suffi- 

 cient reason for believing that the development of man's 

 mind has been anything other than natural and in accord- 

 ance with the principles that apply in the development of 

 the minds of other species. So far as we can judge, man 

 is the result of the same processes and factors that have 

 produced the bees with their wonderful instincts and the 

 tiger with his superb physique. 



Not only has man been produced under the influence 



