DIGESTIVE TRACT OF THE CAT. 



27 



drawn superficial ones. The various coils were numbered, 

 beginning with the termination of the ileum and ending 

 with the beginning of the jejunum, and the corresponding 



Fig. 16. 



>SY., stomach, cce., csecum. Du.^ duodenum. 



superficial coils in both drawings were marked with the same 

 letter. 



There was no similarity in the arrangement of the indi- 

 vidual coils of intestine in these two embryos. 



It seemed to me that this might have been caused by 

 the great difference in their length, so three embryos were 

 chosen, as nearly as possible the same length, 63|, 65|, and 

 66 mm. These were drawn and studied after the method 

 just described. The 63| embryo was not as far advanced in 

 intestinal development as the other two. Its caecum was in 



