DISEASES OF RESPIRATORY" PASSAGES AND ORGANS. 101 



him. Since the operation. Leblanc hud not observed any 

 change in the horse, except a depression of the bones of the face. 

 After death, the larynx was found very narrow, the mucous mem- 

 brane and submucous cellular tissues were thickened, the epiglot- 

 tis deformed, very obtuse, and everted at its free margin. The 

 changes in the larynx were the original cause of roaring. The 

 depression of the bones of the face was connected with constric- 

 tion of the nasal chambers, and was evidently secondary to the 

 change in the course of the air in the process of respiration. The 

 parts of the trachea in contact with the tube had undergone a 

 transformation into very hard tissue. It filled the trachea above 

 the point where the tube had been introduced, and intermixed 

 witl this firm fibrous deposit was a cartilaginous and osseous tissue, 

 which offered great resistance to the scalpel. Roaring, thick wind, 

 w bistling, etc., are often the sequel of strangles, influenza, laryn- 

 gitis, and other affections of the respiratory passages, and hence 

 hi ive an accidental origin. In such cases, we may entertain a hope 

 ol doing some good by means of medicinal agents and counter- 

 irritation. 



Treatment. — The medicines which have proved most successful 

 in my practice are as follows: 



No. 14. Iodide of potass 4 oz. 



Fluid extract of stillingia 12 oz. 



Water 4 oz. 



Mix. 



Give the patient two ounces daily, by means of a small vial; 

 and rub the region of the throat every night with a portion of 

 the following : 



No. 15. Cod-liver oil ) , 



Spirits of camphor j e( * ual P arts ' 



Polypus within the Nostrils. 



Polypus is the name given to an excrescence, or tumor, which 

 has its origin from the surface of the membrane lining the nasal 

 cavities. It is designated as growing from a mucous membrane, 

 having a narrow neck and body, resembling, in shape, a pear. 

 The usual symptoms attending the presence of polypus in the nasal 

 cavities are as follows : Difficulty of breathing, evidently occasioned 

 by abstraction in the air-passages. 



