122 THIS DISEASES OP THE DOG. 



found firmly plugging the pyloric orifice, and the adjacent 

 mucous membrane was much thickened and inflamed* * 

 * * * The second dog had suffered more or less for 

 six months, it became very thin and occasionally showed 

 much distress, heaving, at the flanks, and suffering from 

 vomiting, fits, and convulsions. The stone found in the. 

 stomach was too large to pass into the intestines, 

 and the pyloric orifice was rendered small by an excessive 

 thickening of the coats of the stomach. Mr. Hunting 

 draws attention to two clinical memoranda for such 

 cases: — (1) The beef-tea made from Brand's essence being 

 perfectly fluid, is the only form of nourishment which is 

 retained in these instances. (2) It is only when the foreign 

 body attempts to pass the pylorus that convulsions occur/ 

 or that irritation of the stomach which induces them. 



Touatt ('The Dog/ 1861) quotes two remarkable 

 cases in each of which a large dog swallowed a fork, 

 and it could be felt by manipulation in the stomach. 

 In the first case the veterinary surgeon judiciously kept 

 the dog's stomach well distended by feeding him on 

 cow's-liver and gave doses of dilute sulphuric acid. In 

 due course a fistula formed and by the aid of incision 

 the fork was removed, much corroded, and minus its 

 ivory handle, which had been digested, and the animal 

 did very well. In the second case, on abdominal incision 

 the handle of the fork was found among the viscera, and 

 the remainder embedded in the root of the mesocolon 

 where it was causing much inflammatory mischief. This 

 animal also recovered. 



Parasites in the Stomach. — The most frequent worm 

 seen in the stomach of the dog is Ascaris marginata, which 

 is probably identical with A. mystax of the cat (Oobbold)^ 

 They gain the stomach probably by migrating from the 

 intestines and give rise to some irritation, and thus 

 they become expelled by vomition, but they sometimes 

 produce serious and even fatal effects. Thus in the 

 ' Veterinarian,' 1878, p. 353, are mentioned two cases, in 

 one of which five of these worms caused intussusception 

 and rupture of the bowel in a puppy ; in the other death 



