106 



THE EARLY DEVELOPMENT OF MAMMALS. 



FIG. 60. PIG OF 20 MM. SERIES 59. RECONSTRUCTION OF THE LYMPH-VESSELS AND PART OF THE VENOUS 



SYSTEM. BY F. T. LEWIS. 



Az, Azygos vein (remnant of the posterior cardinal). Br, Brachial vein. C.C, Common cardinal vein. Ce, 

 Cephalic vein. Cis, Cisterna chyli. Ex.J, External jugular vein. Fe, Femoral vein. G, Gastric vein. 

 In.J, Internal jugular vein. R.A, Renal anastomosis between the subcardinal veins. Sci, Sciatic vein. S.l.j, 

 Jugular lymph-sac. S.l.m, Mesenteric lymph-sac. S.M, Superior mesenteric vein. Th.ep, Thoraco-epigastric 

 vein. V, Omphalo-mesaraic or vitelline vein. V.C.I, Vena cava inferior. X 8 diams. 



