296 EVOLUTION OF TO-DAY. 



break in the series of continuity. If the latter be 

 true, then it is possible that man has been both 

 physically and intellectually evolved from lower 

 animals. If possible, it immediately becomes prob- 

 able from the general lines of argument already con- 

 sidered. 



Method by which the Evolutionist Explains Human 

 Intelligence. 



The evolutionist has attempted the burden of 

 proof, and has attempted to show that the mental 

 nature of man could have been derived by the 

 development of the mind of animals. He says that 

 man differs from animals only in the fact that his 

 intelligence is more highly developed. He even 

 goes so far as to give reasons why this intelligence 

 was developed somewhat as follows : Every animal 

 must have some means of defence against its ene- 

 mies. Through all the geological ages this defence 

 was entirely in physical attributes, in muscular 

 strength, in great size, and low organization which 

 made great injuries possible without death. But 

 with the advance in organization higher methods 

 of defence made their appearance. As we have 

 noticed in considering paleontology, there has been, 

 since the tertiary age, a gradual increase in the size 

 of the brain, affecting all mammals. This increase 

 does not probably mean much increase in intelli- 

 gence, but rather an increase in the nervous control 

 over the muscles, and hence increased vigor. But it 

 was at the same time making a development of in- 

 telligence a possibility. The primates finally ap- 



