172 Diseases of the Respiratory Organs. 



the dog. The offender is a formidable-looking object, a 

 representation of which is given in the accompanying 

 figure. It is the mature form of the parasite common to 

 man, the horse, and other animals indigenous to various 

 parts of Europe, in which it occupies 

 the digestive organs, &c., and is 

 known as the Feiitactonia de?iticiila- 

 fum. Dogs frequenting butchers' 

 shops, slaughter-houses, and horse- 

 slaughterers' yards gain access to the 

 viscera which contain the parasite. 

 It is taken to the mouth, where it 

 attaches itself by powerful booklets, 

 and eventually era wis to the nostrils ; 

 some indeed pass direct, first attach- 

 ing themselves to the outer side of 

 the lips, &c. Armed with formidable 

 and powerful hooks, they set up 

 violent irritation as they migrate to 

 and from the various passages, 

 causing the sufferer to push his nose 

 into the soil, or rub it with his feet ; 

 he also sneezes, champs the jaws, 

 rolls violently on the ground, or 

 passes into a violent convulsive fit, 

 in one of which he sometimes dies. The parasite 

 requires twelve months to develop, during which it thus 

 tortures the dog whenever from any cause it is obhged 

 to change its quarters by cold or frost, of which it 

 appears to^ be peculiarly susceptible. Tfie effects of its 

 residence in the nasal chambers of the dog are inflamma- 

 tion, thickening, and probably ulceration of the lining 

 membrane, with more or less disease of the turbinated 

 bones, and even harder structures. 



TV^^?/;;/^;//.— -Inhalation of various volatile substances, 

 fluids, &c., as iodine, chloroform, chlorine gas, tobacco 

 smoke alone or combined with other agents. The 

 application of iodoform may be effectual. Sometimes 

 these are useless, as the parasite is located within one of 

 the sinuses. When such is the case, and the exact 



Pentastoma Denticulatum 

 (after Kiichenmeister). 



