DISEASES OF DOGS. 



1059 



Fig. 1412.— Egg of the Giant Strangle. 



a, Egg enlarged 840 times; b, The same, 

 treated with concentrated sulphuric acid, 

 rendering the yolk visible. 



Vienna, 104 



were found to 



contain the 



bordered 



round - worm ; 



and Cobbold 



says that Y0 



.out of every 



100 English 



dogs contain 



it. 

 These worms, 



besides inhab- 

 iting the small intestines, sometimes crawl into 

 the stomach, causing great irritation, and at 

 other times they find their way into the throat 

 or nostrils, making the animal furious with 

 agony, and then it is a mercy to kill him. 



The B'lo6dy Round-Worm. — Another 

 round-worm of frequent occurrence in the dog 

 is the spiroptera sanguinolenta, or bloody round-' 

 worm, shown in Fig. 1409. 



This worm dwells equally in tumors in the 

 stomach, in the oesophagus, or in the intestines. 

 The Giant StrOnglE.— This parasite con- 

 stitutes also a great pest of the dog. Fig. 1410 

 shows the male, and Fig. 1411 the female of this 

 parasite, while the egg is shown in Fig. 1412. 



This pestilential parasite js something like the thread strangle, 

 or strotigylus filaria, in the sheep. Its presence occasions grave dis- 



Fig. 1413.— The Tricho- 

 cephalus Dispar. 



a, Male, natural size; b, 

 Same, magnified; c, Female, 

 natural size. 



Fig. 1414. — Bodkin-tailed Round-worm, Female. 



a, Natural size; b, Greatly enlarged. 



orders. The substance of the organ in which it locates is gradually 

 destroyed. Those parts which hold out for any time are subject to 

 frequent hemorrhages ; the kidney is turned into a sac or cyst for 



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