144 Roaring in Horses. 



results, and so far as these go, it might be anticipated that 

 a very large percentage of horses affected with Roaring 

 may be rendered serviceable, and perform their work with- 

 out impediment in respiration. 



In a few cases there may remain a slight " coarseness " 

 in the breathing for some time after the operation, and the 

 noise may even be rather marked until the wound has 

 completely cicatrised, and the larynx has had time to ac- 

 commodate itself to the altered conditions. 



A large number of troop and officers' horses have been 

 operated upon, under my direction, by Mr. F. Raymond, of the 

 Army Veterinary Department, and without a fatal case or 

 accident of any kind, notwithstanding that every horse was 

 thrown down and placed fully under the influence of chloro- 

 form for the operation ; besides having the interior of the 

 larynx frequently examined, and sometimes the wound 

 surface dressed, during the healing process. Of course, this 

 success depended upon the skill with which the horses were 

 treated, both during operation and subsequently ; care in 

 the administration of the chloroform ; expertness in surgical 

 manipulation, acquired by practice ; close attention to the 

 wounds for some days ; and the strict observance of sanitary 

 precautions. 



Cicatrisation has generally taken place favourably and 

 rapidly, and without undue, if any, contraction of the mucous 

 membrane. The walls of the larynx (thyroid and cricoid 

 cartilages) being firm and unyielding, and the mucous mem- 

 brane being rather closely attached to them at the seat of 

 operation, contraction is not very probable. In some cases, 

 the granulations, being rather exuberant, required checking 

 or removal ; but with the acquirement of expertness in 

 excising the arytsenoid cartilage, and the adoption of certain 

 precautions, the wounds gave little trouble, and the healing 

 process was generally rapid. 



It may be mentioned that of all the horses prepared for 

 operation, only one was found with both arytsenoid carti- 



