VOLVULUS. ILEUS. 273 



tered the remaining portion, and by the efforts of the horse 

 had been gradually forced through the anus. 



" The lining of the colon (that is, of the part extended) was 

 much gorged, and quite black." 



Mr Field also refers to a case in which a melanotic tumor 

 caused obstruction and rupture of the rectum. 



VOLVULUS. ILEUS. 



Under these names diseases have been described affecting 

 man and animals, and which consist in various forms of en- 

 tanglement of the intestine, supervening in or giving . rise to 

 severe colic. I do not include under this head accidents 

 which consist in the accidental intrusion into a natural or 

 artificial opening of a portion of intestine (see Hernia.) 

 Very remarkable cases, however, occur, and I think I cannot 

 better illustrate this than by quoting again from Mr Field's 

 valuable Records. We there find 



"May 3rd, 1832. A bay carriage-horse, belonging to 

 General H , was suddenly seized with pain and profuse 

 sweating, without disturbance of the pulse. 



" 4 o'clock, P.M. Slight tremor of the hind quarters lies 

 down much, but is not very uneasy. 



" Half-past 7 o'clock P.M. Pulse 54. 



" ] o'clock, P.M. Pulse frequent and full more rest- 

 less. 



" 4?th. Pulse 78, and wiry much distention of the belly 

 membranes of their natural colour has had no evacu- 

 ation. 



"12 o'clock. Pulse 78, and feeble, but distinct tongue 

 livid conjunctiva injected respiration quiet belly much 

 distended. The horse died in the afternoon. 



"Examination. Two feet of the ileum, just before its 

 termination in the caecum, strangulated by a band of inesen- 



T 



