FlG. 75. Venous system of the frog seen from the dorsal side, abd, ab- 

 dominal vein; br, brachial vein; cd, cardiac, or vena bulbi cordis ; ds. 

 Imb, dorso-lumbar ; dfo, duodenal ; ext.ju, external jugular ; fin, femoral; 

 gs, gastric; hp, hepatic; hp.pt, hepatic portal ; inf. intestinal; int.ju, 

 internal jugular; kd, kidney; l.au, left auricle; Ing, lung; /ir, liver; 

 HIS.CU, musculo-cutaneous ; pr.cv, precaval ; pt.cv, postcaval ; pul, pul- 

 monary ; pv, pelvic ; r.aii, right auricle ; rn, renal veins ; rn.pt, renal 

 portal; sc, sciatic; sf>/, splenic; spin, spermatic; s.v, sinus venosus," 

 ts, testis ; ves, vesical veins. (From Parker and Haswell's Zoology.) 

 T 273 



