FIGURE 21 



21 Same section, X 150. 



7 Aorta. 



.")! .Mesenteric l\-inphaf ics. 



58 Ureters. 



67 Right postcanlinal vein. 



68 Left postcardinal vein. 



74 Cardinal collateral veins. 



75 A.scending lumbar lymphatic trunks. 



