FI(;URKS 144 and 145 



144 Same, section 34. 



145 Same, section 35. 



3 Ri^lit precaval vein. 



4 Atrophying embryonal vein, forming kernel in interior ot (le\el- 



oping; and replacing lymphatic space. 



5 Extraintinial or perivenous lymphatic space snrronndiiifi degen- 



erating (Muliryonal vein. 



6 Precardinal or i)recava of left side. 



7 Aorta. 



8 Oesophagus. 



9 Trachea. 



10 Pulmonary artery. 



18 Peritraflieal venous plexus. 



22 \'agus. 



