VOMITING. 609 



changes. Some of tlie most remarkable cases which I have 

 watched Avere m young horses, and followed feeding upon 

 haws from the hedgerows during the late autumn. In some 

 of these animals a fatal result was reached, apparently through 

 gastric and intestinal inflammation. In those which recovered 

 there was much distress, with vomition of considerable quanti- 

 ties of the berries, and weU-marked prostration for some days 

 afterwards. 



2. Where dilatation of the lower extremity of the oeso- 

 phagus close to the cardiac orifice existed. Irregularly occur- 

 ring but long-continued vomiting I have noticed in a few cases, 

 when, on examination after death, a considerable pouch in the 

 cesophagus existed close to the cardiac opening, and where 

 probably this latter was regularly disposed to be dilated. 



3. Kuptures, partial or complete, of the gastric walls. These 

 lesions, when occurring, I am disposed to associate with pressure 

 from within rather than with intrinsic and extensive muscular 

 contraction, and feel satisfied that the vomition occurs subse- 

 quent to the rupture, not that the rupture is the result of this 

 functional disturbance. 



4. Probably, also, in such states as closure of the pyloric 

 opening of the organ, when the contained material is prevented 

 from passing along the duodenum. 



When the contents of the stomach are regurgitated, they 

 are, of course, chiefly ejected through the nasal apertures. 

 Although always a grave symptom, it is not necessarily indi- 

 cative of a fatal result ; and while symptomatic of gastric 

 rupture, it is not associated with this lesion alone. 



In the treatment of cases of vomition, when these are the 

 result of merely excessive distension, or at least when struc- 

 tural changes are not satisfactorily demonstrated, we are 

 always warranted in making attempts to empty the stomach 

 by passing the contents along the canal, and allowing the 

 organ a perfect rest for some days, endeavouring to support 

 the animal without calling for any, or much, gastric action. 



II. Dyspepsia — Indigestion. 



Definition. — Disturbance of the function of digestion unasso- 



dated tvith perceptible textwral change or lesion of the stomach. 



Varieties. — Of the different forms in which disturbed diges- 



39 



