416 



H. H. Newman and J. T. Patterson, 



— am 



am.c.c. 



^r-^\^p.am. 



13 



liG. 13. A detailed drawing of embryo I (fig. 12)as seen from the dorsal aspect, 

 that is, as viewed from the inside of the vesicle, am., amnion; a.mc.c, connecting 

 canals of the amnion; j^.am., posterior amniotic process; b.s., belly-stalk; tr., 

 Trager. X 25. 



