PLATE 14 



EXPLANATION OF FIGURE 



25 From same reeonstnu-tioii as in fig. 24. View from left side. 



I, aorta 



3, aortic arch VI 

 5, celiac artery 



7, carotid artery 



8, dorsal somatic arteries 

 10, ])recardinal vein 



II, subclavian vein 

 12, duct of Cuvier 

 IS, vertebral vein 



14, part of splanchnic plexus of veins 



15, jugular lymph sac 



16, groups of developing blood cells 

 16a, blood cells dorsal to aortic roots 



17, thoracic duct, ventral plexus 



18, lymphatics along aortic arches 

 20, lymphatics dorso-lateral to aorta 

 ?/, mesenteric lyniphatic^s 



190 



