Chap. 9.] Quadrupeds. 133 



cept that the os coccygis is continued beyond the other 

 parts of the body, and forms the tail. The upper 

 part of both extremities, as in man, is formed of one 

 piece of bone, the lower part of two, and in many 

 quadrupeds there are bones which correfpond with 

 the carpus and tarfus, the fingers and the toes. The 

 clavicula or collar-bone is in general, however, want- 

 ing in quadrupeds, and is only found in monkeys, 

 fquirrels, and fome other animals, which are fkilful 

 in climbing, and whith employ their fore legs for 

 other purpofes than that of travelling. In fhort, the 

 fkeleton of the quadruped is fo fimilar to that of 

 man, that when the Ikeleton of the former is placed 

 eredb on the hind- legs, it may eafily, by perfons unac- 

 quainted with anatomy, be miftaken for that of the 

 latter. 



The figure in Plate II. reprefents a front view of 

 the human fkeleton, with fome of the ligaments and 

 cartilages, which connect the bones to each other. 



HEAD and NECK. 



a, Os frontis. 

 by Os parietale. 



Between a and b, part of the coronal future. 



c, The pars fquamofa of the temporal bone. 

 Between b and c, the fquamous future. 



Below the pars fquamofa, the zygoma ; and, lower 

 down, above/, the maftoid procefs. 



Between the pars fquamofa and the cavity, which 

 contains the eye-ball, called the orbit > the tempo- 

 ral procefs of the fphenoid bone is feen. 



d, Os make. 



Above d, a portion of the tranfverfe future. 

 c., Os maxillare fuperius, with the eight teeth of th$ 

 right fide, 



K3 The 



