Lary7igitis in the Horse. 121 



the membrane connecting the two rings, and with the knife a 

 semicircular piece of cartilage is cut from each of the two adjacent 

 rings. The thread in the connecting membrane prevents them 

 from being drawn in by the rush of air. It only remains to intro- 

 duce the tube and fix it in position. 



Not only does tracheotomy obviate immediate danger of suffoca- 

 tion, but by removing the source of irritation in the continuous 

 and forcible rush of air through the narrowed and inflamed tube, 

 and in securing for the blood a freer aeration and a purer consti- 

 tution it often induces a rapid change for the better ia the charac- 

 ter of the inflammatory action. The wound may be daily cleansed 

 and dressed with sodium hyposulphite. 



Some veterinarians following the example of Bretonneau and 

 Trousseau have treated sore throat from the first by what is called 

 the abortive treatment. For this purpose a long whalebone prob 

 with a pledget of tow firmly attached to its end and covered with 

 powdered alum is introduced through the mouth into the pharynx 

 and larynx even. Violent paroxysms of coughing are induced, 

 but cures are affected in from two to five days. Under Delafond's 

 treatment calves and foals recovered in twenty-four hours. A 

 more modern method is to inject a solution by means of a hypo- 

 dermic syringe inserted between the upper rings of the trachea. 



Milder treatment such as the inhalation for an hour several 

 times a day, of the fumes of burning sulphur and water vapor 

 will be found generally successful. The air should be impreg- 

 nated with sulphur fumes only so far as can be breathed without 

 inducing coughing on the part of the patient. Such measures 

 should not divert attention from the necessity for general care, a 

 control of diet, clothing, air, the state of the bowels, nor from 

 local external applications to the throat. 



Treatment of Chronic Laryngitis. The patient should have 

 a loose airy box with an equable temperature. The avoidance of 

 work and exposure must be sought for the time. Green food, 

 cut roots, boiled grain, or bran mashes, with little or no hay, or 

 other dry food, must be given. The bowels must be regulated. 

 An electuary compound of linseed meal, molasses, and a drachm of 

 belladonna extract to every tablespoonful of the mixture, may be 

 given to the extent of a tablespoon ful smeared on the inner side 

 of the cheek twice daily. A mustard poultice to the throat has 



