252 



E. A. BAUMGARTNER 



that they are separated as far as the transverse width of the gut 

 will permit. On the lateral side there is an indefinite furrow at 

 about the level of the dorsal margin of the liver extending caudal- 

 ward in the wall of the gut and yolk-mass. This marks the 

 upper limit of the ventral pancreatic anlagen (fig. 24). In 



Pig. 26 Drawing of a section through the ventral anlagen of an embryo 9 

 mm. long. X 40. F.g., foregut; V.Pan., right and left ventral pancreases. 



Fig. 27 Drawing of a section through the ductus choledochus of an 11 mm. 

 embryo. X 40. D.chol., ductus choledochus; <S/., stomach; V.Pan., ventral 

 pancreas. 



Fig. 28 Drawing of a section about 80^ anterior to the preceding. X 40. 

 For abbreviations, see figure 27. 



Fig. 29 Drawing of a section through the dorsal pancreas of an 11 mm. em- 

 bryo. X 40. D., duodenum; D. pan., dorsal pancreas; Y, yolk gut. 



