IN THE LOWER ANIMALS, ETC. 349 



nished space, and the face is consequently smaller 

 in comparison with the skull. 



As the volume of the brain increases, the occi- 

 pital portion of the skull is greatly enlarged, and 

 the great foramen advances to the centre of the 

 skull, occupying a nearly horizontal plane. Even 

 in the highest Quadrumana it is placed at nearly 

 twice the distance from the front of the jaws as 

 from the back of the head, and is so inclined in 

 direction, that a line drawn in its plane passes 

 beneath the lower jaw, whereas in man the cor- 

 responding line would pass immediately under the 

 orbit. 



In all the lower animals, the muzzle, with its 

 projecting front teeth, constitutes the most pro- 

 minent part of the face ; but in man the mouth 

 recedes, and the forehead and chin project. The 

 facial angle is thus greatly increased, the plane 

 of the face being nearly vertical, an arrangement 

 in harmony with all the other parts of the human 

 frame, which is so evidently designed for the erect 

 position, peculiarly distinguishing man from the 

 meaner creatures. We are thus forcibly reminded 

 of the words of our great poet : — 



" God-like, erect, in native majesty seems lord of all.'* 



Consistently with these features, the incisor 

 teeth approach nearly to the perpendicular posi- 

 tion, and forming a continuous arch, observable 



