22 



MORPHOLOGY OF THE 



was in proportion to the growth of the embryo, one would 

 not expect to find a diminution, but distinctly an increase in 

 this curve. In a word, the colon in Fig. 12 is much shorter 



Fig. 13. 



The dissection of an embryo 70 mm. (Enlarged 4 diameters.) X., liver. 

 t. c, transverse colon, cce., caecum. iL, ileum. S.^ stomach. Sp.^ spleen. 

 O., omentum. D., duodenum, s. m. a., sup. mesenteric artery, k.^ kidney. 

 d. c, descending colon. 



in proportion to the length of the embryo than in Fig. 11. 

 Moreover, the loop formed by the junction of duodenum and 

 jejunum is exerting no little pressure upon the colon as it 



