66 VETEKINARY OPHTHALMOLOGY. 



canals contain cells. The fasciculi are in layers, one 

 above the other. The canals in the cornea are 

 hollowed out of the tissue formed by the cement and 

 fasciculi, and may be resolved into shallow spaces, very 

 numerous and communicating with each other by 

 canaliculi, which vary in size and form a net-work 

 throughout the parenchyma, penetrating between the 

 fibers and ramifying from layer to layer. Their func- 

 tion is to convey the nourishuig lymph. Three varieties 



FiS. 33. 



of csplls may be found in these canaliculi, fixed, wander- 

 ing and pigment. The fixed lie in the lacunae, and 

 send prolongations out into the canals. The wander- 

 ing are brighter, larger, and, as the name implies, have 

 power of motion. The pigment is found only at the 

 periphery of the cornea. On the inner side of the tissue 

 proper of the cornea is a lining membrane called (4) 

 J)esc,emets. It is firm, elastic, glossy in appearance and 



