7A 



7B 



7C 



Fig. 7 A series of transverse sections in the region of the liver. A, embryo 

 of 13.5 mm. X 20; B, embryo of 20 mm. X 15; C, embryo of 35 mm. X 10; 

 G.b., gall-bladder; L, liver; P., pancreas; Sp., spleen; St., stomach; x, ostia 

 of ductus choledochus into gut. 



224 



