DIGESTIVE TRACT OF THE CAT. 



41 



distinctness in the latter embryo, as well as in the embryo 

 of 111 mm. 



We know that the stomach is obliquely placed in the 

 adult cat, as well as that the oesophagus enters it obliquely. 

 The cause of both is presumably due to the growth of the 

 Spigelian lobe, chiefly, it would seem to me, at the stage of 

 development that would correspond to the ()1 mm. embryo. 

 The liver groove, in which the oesophagus lies, is actually 

 more pronounced at a later date, but this is i)robably caused 

 by a slight additional growth of the left lateral lobe. 



Hence we conclude that certain lobes of the liver, by 

 means of their peculiar mode of growth, have a direct influ- 

 ence upon the obliquity of the terminal end of the oesopha- 

 gus, the position of the stomach, the arrangement of the 

 coils of the jejunum and ileum, the formation of the ascend- 

 ing colon, and in the limitation of the transverse colon of 

 the adult cat. 



Finally, I should like to acknowledge my indebtedness 

 to Prof. C. S. Minot for many valuable suggestions, and 

 especially for calling my attention to the advantages of dis- 

 section over other methods in the pursuance of this investi- 

 gation. 



