EXPLANATION OF THE PLATES. 



PLATE LVL 



Fig. 1. A portion of the surface of the liver, in which the 

 portal capillary system has been injected. 



Fig. 2. Section of liver, in which both the portal vein and 

 the hepatic artery have been injected, the red ves- 

 sels indicating branches of the hepatic artery. 

 The drawing was made from a very perfect in- 

 jection kindly lent me for the purpose by Mr. 

 Quekett. 



Fig. 3. A portion of the surface of the liver, in which both 

 the hepatic and portal venous systems are well 

 shown, each being distinct. Drawing made from 

 a preparation of Dr, Hanfield Jones. 



Fig, 4. A section of liver, in which both the portal and he- 

 patic venous systems have been completely injected 

 from the portal vein. 



