70 



MR. t\ E. BEDUARD OX THE 



inferred from what has been ah'eady said about Gypagus. The 

 spiral of the duodenum makes rather more than a complete circle 

 and its limbs are fixed together by mesenteries ; the gut does not 

 simply lie in a spiral. The loop which is lettered " I " in Mitchell's 

 figure is broader and not so narrow accoi-ding to my observations, 

 but better marked than in Gypagus. As to the following portion 

 of the small intestine, I do not agree in detail with Mitchell. 



Text-fiff. 21. 



Intestinal tract of Cathartes aura. 

 Lettering as before. 



The two loops forming it run close together, so that it is long 

 and narrow, and not broad as figui'ed by Mitchell. There is a 

 tendency to form a rough kind of spiral not nearly so marked as 

 in Gypagus. Tlie ileic loop is only attached to the duodenal by 

 mesenteiy at its very base. The supraCsecal loop is more marked 

 than in Gypagus. 



