CHAP. II.] 



THE curs GENERAL FORM. 



25 



hind paw. Each pad consists of a mass of fibrous tissue and fat, 

 and a hirgc trilobed one is placed beneath the ends of those bones on 

 which the animal rests in walking, as represented in the figure here 



w m 



Fig. 9.— UsDEE Surface of Fore-paw. 

 I, II, III, IV, V. Tlie five toes, I being the 

 poUex. 



(1. Trilnlied pad wliirli lies beneath the distal 



ends of the iiietaeariial bones. 

 "'* Pad beneath the pisifonii bone of the wri.st. 



m 



km If ^ fej 



Fig. 11.— Columnar ciliated Epithelial 

 Cells, magnified 300 diameters. 



A miniber of eilia are seen on the flattened 

 superficial end of each cell, which also con- 

 tains a nucleus with a nucleolus. 



Fig. 10.— Under Surface of Hind-paw. 



II, III, IV, and V. The respective four digits. 

 a. Pad beneath the metatarsal bones. 

 h. Heel. 



given. But, as before observed, the skin does not clothe the^exterior 

 of its body only ; at the margin of the lips it is reflected inwards, 

 hning the mouth and continuing onto line the whole alimentary canal, 

 and it also lines all the other passages which open on the exterior of 

 the body. The cat's body may thus be compared with a ring-shaped 

 air-cushion which has been very much drawn out on each surface, 

 the central vacant space being also greatly prolonged, but contracted 

 in diameter to represent the alimentary canal. 



