FIGURE 2 



2 Transverse seetioii of 10 iimi. cat embryo (series 111. slide VIII. seetiou i) 

 X 300— left si.le of emhryo. 



6S Left i)()stc:irclinai vein. 



73 Left dorsal aorta. 



77 Mesencliynial infereellular lymphatic anlages. 



78 ( 'oeloin. 



79 Coeloiiiic stoma. 



