116 SPECIES NOT 



enormous expansion of the brain-case; (b) the 

 restricted growth of the bones of the face, especially 

 of the jaws, in relation to the small equally - 

 developed teeth; and (c) by the early obliteration 

 of the maxillo inter-maxillary suture. 



40th. The skull of man is further distinguished 

 from all apes, or other animals, by the peculiar 

 and beautiful manner in which it is balanced 

 on the neck, and the articulation is so designed 

 as to protect parts, the slightest injury to which 

 would cause instant death. 41st. Man has 

 not the strongly-developed frontal crest seen in 

 the apes a structure which no muscular power, 

 as effects of use or disuse, can possibly be sup- 

 posed to produce, and which is therefore a 

 pre-ordained peculiarity in the ape. 4i ) ml. 

 There are no bony crests on the upper convexity 

 of the human skull. And to these distinctions 

 may be added 43rd. The brain of man is the 

 only organ of the kind in the animal world, 

 which can be placed in the mammalian division 

 Archencephala, (from archo to overrule, enceph- 

 alos brain.) 



44th. With this peculiarity of structure, and 

 form of brain, is associated in man the highest 

 of all intelligence reason. Man builds himself 

 a house, and can improve it: the Gorilla slings 

 a hammock in his tree, which he never encloses 

 with a roof or improves. 



Now the peculiarities I have above mentioned 

 as distinguishing man from the quadrumaria, are 

 not observed between the different varieties of 



