Pig. 14. Diagram of Circulation. The blood circulates as follows: V.C., 

 V.C. (venae cavae), R.A. (right auricle), R.V. (right ventricle), P. A. (pul- 

 monary artery), L.A. (left auricle), L.V. (left ventricle), A.A. and D.A. 

 (ascending and descending aorta), H.V. and B. (capillaries of head, viscera 

 and body generally), P.V. (portal vein), Li. (liver). The small black ves- 

 sels are the azygos veins. 



