FIGURE 2 



2 Transverse section of 10 mm. cat embryo (series 111. slide VIII. section 4) 

 X 300 left side of embryo. 



68 Left post cardinal vein. 



73 Left dorsal aorta. 



77 Mesenchymal intercellular lymphatic anlages. 



78 Coelom. 



79 Coelomic stoma. 



