I'H lURK 192 



192 lieconstruction of cephalic portions of azygos veins and anlages of 

 azygos segment of thoracic ducts in a 15.5 mm. cat embryo; (series 143. slides 

 XrV, XV, XVL XVTT and XVTTT) X 225. Ventral view. 



34 Ventro-medial azygos plexus. 



