QUADRUPEDS. 171 



a. Furnished with tusks. 



The teeth appear to be unfit to furnish characters for 

 farther subdivision, until we come to the construction of ge- 

 nera. The organs of motion, however, supply their place. 



1. Thumbs fated to act in opposition to thejingers. 



All the animals of this group have the eyes directed 

 nearly as in man. The orbitar arid temporal fossse are se- 

 parated from each other. The anterior ventricles of the 

 brain have digital cavities. The cerebellum is covered by 

 the posterior lobes. This division of animals has long been 

 subdivided into two orders ; the first containing Man, the 

 second the Monkey. 



BIMANA. 



Posterior extremities formed for walking. 



This order contains one genus, consisting of one species, 

 Man. 



1. HOMO sapiens. 



Man is peculiarly distinguished from all those animals 

 which make an approach to him in bodily configuration, by 

 his erect position. His head is attached by the middle of 

 its base to the vertical spine, and is destitute of those liga- 

 ments which serve as its support in the species in which it 

 is attached to a horozontal spine. The pelvis is wide, and 

 enables the legs to support the trunk more steadily. The 

 toes are short, and the great toe is uniform in its position 

 with the others ; circumstances which, while they unfit the 

 feet for grasping or climbing, qualify them for supporting 

 the body by resting on the ground. For this purpose, the 

 sole of the foot and heel are broad and flat, and their sur- 

 face placed at right angles to the vertical direction of the 

 body. The muscles are likewise arranged, so as to preserve 

 the leg m a state of extension, and give to the calf and 



