162 INTESTINAL WORMS. 



Colic, Inflammatory See Class I, Sub-Class lY. 



Colic, Spasmodic— See Class II. 



INTESTINAL WORMS. 



Of those worms which appear indigenous to the intestines of 

 the dog, the tcenia^ or tape worm, from its flat figure, is the most 

 prejudicial, and the most difficult to remove. I have known four 

 or five hundred joints (each a distinct animal) passed by a dog, 

 whose united length would encircle his body many times. Some- 

 times they become coiled up into a ball, which thus forms an impe- 

 netrable obstruction within the intestines, and destroys the dog. 



The tereS'i or long cylindrical worms, resembling earthworms 

 in figure, but of a whitish colour, are the most common to dogs ; 

 and, when existing in great numbers, particularly in puppies and 

 young ones, sometimes prove fatal by the convulsions they occa- 

 sion. In distemper they greatly aggravate the symptoms ; so 

 much so, that to destroy them, frequently cures the dog. The 

 natural situation of these worms is within the intestines, but they 

 sometimes crawl from them into the stomach, and are then brought 

 up by the sickness they occasion. 



The ascarideSi or small thread-worms, likewise occasionally 

 infest dogs, residing principally within the rectum. They produce 

 an intolerable itching in the parts behind, to relieve which, those 

 troubled with them are seen continually drawing the fundament 

 along the ground. Except by the irritation occasioned, which 

 may weaken when it is excessive, they do not appear to do much 

 internal injury. The constitution of some dogs appears particularly 

 favourable to the generation of worms ; for destroy them as often 

 as you will, they soon return again. Puppies, during every stage 

 of their growth, are very liable to them : in many, the increase of 

 the body appears checked by their ravages. The entozoa family 

 of worms, fortunately, are not very frequently found in dogs ; but, 



