THE ORIGIN OF MAN 233 



ages, and, therefore, natural selection fails to account 

 for the existence of this highly perfect organ. 



He also claims that the powers of the human voice 

 have not been produced by natural selection, for sav- 

 ages are not accustomed to sing, but to howl and 

 make unpleasant sounds. 



One of the strongest points which he makes against 

 the evolution of man by natural selection is that " the 

 brain of the savage is shown to be larger than he 

 needs it to be." 



He claims that the size of the brain is probably the 

 most important factor in determining mental capacity. 

 The following are given as the average sizes of brains 

 in cubic inches: Teutonic family, 94; Esquimaux, 

 91; Negroes, 85; Australians and Tasmanians, 82; 

 Bushmen, 77. 



Some of the largest brains have been found among 

 savages. The largest Teutonic skull in a certain col- 

 lection had a capacity of 112.4 cubic inches; an Auri- 

 canian, 115.5; an Esquimau, 113.1; a Marquesan, 

 110.6; a Negro, 105.8; and an Australian 104.5. 



The European with a brain less than 65 cubic inches 

 is invariably an idiot. 



The brain of the Orang-utan is 28 cubic inches; 

 that of the Gorilla, 30, while jM 1 /^ cubic inches is the 

 capacity of the largest Gorilla brain that has been 

 measured. 



Calling the average of the anthropoid apes 10, the 

 size of the brain of savages is 26, and of civilized 

 man 32. 



"The Engis skull, perhaps the oldest known" is, 

 according to Prof. Huxley, " a fair average skull, 

 which might have belonged to a philosopher, or might 

 have contained the thoughtless brains of a savage." 



Speaking of the oldest known skulls, Wallace says: 

 "But what is still more extraordinary, the few re- 



