12 THE COMMON COLICS OF THE HORSE 



where the extremity of the transverse processes of the 

 first lumbar vertebra reaches; it then passes immediately 

 behind the right l<idney opposite to the second lumbar 

 vertebra, crossing the spine tranversely behind the anterior 

 mesenteric artery ; it is then attached to the colon, and ter- 



FiG. 3. — Photograph of Stomach to illustrate Fig. 2.' 



a, Oisophagus: b, p\-lorus; c, commencement of duodenum ; 



J, pj-loric or duodenal ' trap.' 



minates in becoming continued by the floating portion in 

 the left flank. Where the duodenum rests on the colon 

 and passes under the last ribs on the right side is a 

 practical point of considerable importance. 



The free portion of the small intestines is suspended 



' I have inserted this photograph to illustrate Colonel Smith's 

 diagram. The stomach was removed from the abdomen, and the 

 duodenal S-trap carefully arranged as it lies in situ. — H. C. R. 



