MAN'S PLACE IX NATURE 



4.VJ 



with the anthropoid apes, and tlial lie laiuuu l>c M'p:.raic<l 

 an order from other primates. 



In mental attributes the differeneeh aiu vei y giuia, l»ui li 

 are all correlated with the large size of tlie Imnu-n brain, and 

 all psychological expressions of the high dcgicc of specii-lizalioii 

 of its parts. The largest recorded human ])iain, uccoidirig to 

 Huxley, has a weight of sixty-five to sixty-six ouncj-s, tlie 

 smallest of about thirty-two. The ])rain of the Jiighoi a|)c 

 weighs about twenty ounces. 



The immense diiTerences betwei'u the iniciii^cncc of ajK' and 

 man does not imply any corresi)onding pliysical gaj) lietwocn 



Fig. 289. — Top of brain of a seven-to-eiglit months human em'-rv ■• .t 1. fr ■i, ! 

 year-old female chimpanzee at right, (.\ftcr Wi« 



f«., 



them, or any corresponding difTcTence in tlicir brain.s. Hii\ 

 uses the illustration of a watch which keeps jHTfect linie as 

 compared with a watch having imperfect machinery, 

 difference is not so nuich in the structure of the watch as in 

 the fineness of the parts and the perfection of iheir adju>tnp 



'Believing as I do with C'uvier that the j' ion of arliru 



speech is the grand distinctive character of man nvht'ther it K 

 lutely peculiar tt) him nr not ). I find it very «\'i.'<y to coniprehetMi • 

 some equally inconspicuous .structural difT<'rencr may have Uth tJii* 

 primary cause of the inm>easnral)lc and practically infmito divt rg-'iu-e 

 of the Human from the Simian stirps." 



