34 THE MANAGEMENT AND DISEASES OF THE DOG. 



mesenteric glands of such sheep, the embryonic parasite sticks 

 to the nose and lips, and -afterwards passes up the nostrils, 

 where it becomes firmly fixed by its hooks. Here the embryo 

 gradually increases in size, is endowed with sexual organs in 

 about two months, and attains its full development in twelve. 

 Colin introduced fifty immature parasites into a Newfoundland 

 dog. Eight months afterwards the dog was killed, and eleven 

 mature parasites, nine males and two females, were found in 

 the ethmoidal cells and about the turbinated bones. The 

 males moved about ; the females were fixed by their booklets 

 to the pituitary membrane, and had their copulative sacs 

 filled with spermatozoa, and their oviducts crammed with 

 eggs. 



" Symptoms. — As to the symptoms produced by the worm, 

 whilst Rudolphi found a dog which he examined perfectly 

 well, and Dujardin, Miram, Colin, etc., make no reference to 

 any disorder in their cases, on the other hand, Chobart gives 

 rather a dark account of the effects produced. ' The animal,' 

 he says, ' is subject to convulsions, during which it is violently 

 agitated, stops short, hits itself on the head, rolls over, rubs 

 its nose on the ground, and the jaws convulsively champed. 

 It devours every thing within reach, such as wood, straw, etc., 

 discharges a large quantity of saliva, passes urine involun- 

 tarily, and sneezes without ceasing. Death sometimes en- 

 sues.' 



" The mucous membrane of the nose is found to be red, 

 blackish, ecchymosed, thickened, and ulcerated ; the sinuses 

 more or less filled with pus ; arid even the ethmoid bone 

 sometimes partially carious. 



" Treatment. — Trephine the nostrils and inject with water. 

 Inhalations of chlorine and tobacco smoke. Chloroform ? " 



