FISTULA IN THE ANUS. 221 



in the left bronchia, and a still smaller one among the mucus of the trachea : 

 there were also four others in the nose. 



Several years ago I found some worms of thefilacia species in the right 

 ventricle of the heart of a dog, which had produced sudden death by in- 

 terrupting the action of the valves. 



The following is a curious case of tape-worm, by Mr. Reynold : 



On an estate where a great qiiantity of rabbits are annually destroyed 

 in the month of November, we have observed that several dogs that 

 were previously in good health and condition soon became weak, listless, 

 and excessively emaciated, frequently passing large portions of the tape- 

 worm. This induced us to examine the intestines of several hares and 

 rabbits ; and, with very few exceptions, we found each to contain a perfect 

 tape-worm from three to four feet in length. We then caused two of the 

 dogs whose cases appeared the worst to be separated from the others, feeding 

 them on potatoes, &c. ; and, in eight or ten days, after voiding several feet 

 of the worms, they were perfectly restored to their former strength and 

 appearance. The worm disease, hitherto so formidable to the spaniel and 

 pointer, may in a great measure be fairly attributed to the custom of 

 giving them the intestines of their game, under the technical appellation 

 of " the paunch." The facts above stated, in explaining the cause of the 

 disease, at the same time suggest the remedy. 



A worm in the urethra of a dog. M. Seon, veterinary surgeon of the 

 Lancers of the Body Guard, was requested to examine a dog who strained 

 in vain to void his urine, often uttering dreadful cries, and then eagerly 

 licking his penis. M. Seon, after having tried in vain to abate the irri- 

 tation, endeavoured to pass an elastic bougie. He perceived a conical body 

 half an inch long protruding from the urethra with each effort of the dog 

 to void his urine, and immediately afterwards returning into the urethra. He 

 crushed it with a pair of forceps, and drew it out. It proved to be a worm 

 resembling a strongylus, four and a half inches long. It was living, and 

 moving about. M. Seon could not ascertain its species. The worm be- 

 ing extracted, the urine flowed, and the dog soon recovered.* 



FISTULA IN THE ANUS. 



This is a too frequent consequence of piles. It is often the result of the 

 stagnation of hardened faeces in the rectum, which produces inflammation 

 and ulceration, and frequently leaves a fistulous opening. If we may judge 

 what the quadruped suffers by the sufferings of human beings, it is a 

 sadly painful affair, whether the fistula is external or internal. Whether 

 it may be cured by a mild stimulant daily inserted to the bottom of the 

 abscess, or whether there is a communication with the opening of the rectum 

 which buries itself in the cellular tissues around it, and requires an opera- 

 tion for its cure, it will require the assistance of a skilful surgeon to effect 

 a cure in this case. 



* Prat. Med. Ve't., Fev. 1828. 



