EVOLUTION THE MASTER-KEY 



of the blood stain and inject it into a dog. ^ If 

 &quot;haemolysis&quot; occurs, the blood cannot be canine; 

 if it does not, the blood must certainly be canine. 

 Now the astonishing and even bizarre fact is that 

 the blood of the anthropoid ape gives the charac 

 teristic human reaction, while the blood of the 

 lower monkeys does not. In other words, the blood 

 of man and of the anthropoid ape are identical 

 when judged by this, the most subtle and delicate 

 of all known tests. 



To the evidence of anatomy in favor of mai 

 intimate relationship with the anthropoid ape there 

 has therefore, been added that of comparative pa 

 thology, of embryology, and of physiological chem 

 istry Many more facts might be adduced, sucl 

 as the recent discovery that a function hitherto 

 thought to be characteristic of the human f 

 is also displayed by the anthropoid ape. 

 forth he who doubts that man and the chimpanze 

 have a common ancestor must be congratulated 

 on his inviolate mind. Facts have no terrors 



11 But here we may note a great reservation which, 

 in utter defiance of logic or the evidence, 1 

 accordance with their prepossessions, i 

 some who are prepared to admit the simian origin 

 of man s body. Chief of these is Mr. Alfred Russel 

 Wallace, who long ago distressed Darwin by 

 dining to accept the conclusion that man s mental 

 or psychical characters have ascended by the same 

 &quot;base degrees&quot; as his body. For their view there 



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