': 



a v 



FIG. 204. THE CAPILLARY NETWORK CONNECTING AN ARTERIOLE AND VENTTLB 

 OF THE OMENTUM OF A YOUNG RABBIT. 



The blood-vessels have been injected. The discolorations at I and I are due to the 

 presence of lacteals beneath the endothelium ; at I' and /' these are surrounded by the 

 capillary network, a, arteriole; v, venule. Considerably magnified. (After Ranvier.) 



FIG. 205. CAPILLARY VESSEL OF THE FROG'S MESENTERY. 



Treated with nitrate of silver to show the outlines of the endot helial cells. Highly 

 magnified. (After Ranvier.) 



13 185 



