8 Roaring in Horses. 



been effused in the windpipe or its branches, which, be- 

 coming sohd, obstructs, in a greater or less degree, the 

 passage of air."i And later the same writer elsewhere 

 states : " There is another complaint of the lungs, or parts 

 connected with them, and an incurable one, which the pur- 

 chaser should be guarded against. This disease is named 

 Roaring, from the wheezing noise a horse makes when rode 

 fast, particularly when galloped up a hill : it is sometimes 

 so considerable as to be heard at a distance of many yards ; 

 but in walking, or moderate exercise, it can seldom be per- 

 ceived. The method which dealers usually employ to 

 detect this complaint at a repository, where no other trial is 

 allowed, is to whip the horse under the belly and make him 

 turn suddenly, or by making him leap over the bar ; if he is 

 a roarer, this sudden exertion causes him to groan. But 

 this criterion should never be depended upon when an 

 opportunity offers of galloping the horse. "^ 



Percivall,3 in 1824, treats of Roaring in a more com- 

 plete manner than any previous English writer; and again 

 in 1840 he deals with it in another work,'' though more 

 briefly and no more satisfactorily. Youatt in 1833,^ John 

 Field in 1837,'^ Ferguson in 1838,^ Turner and Cartwright 

 in 1849,8 Owles in 1854," Eeeve in 1858,i» and other writers 

 have devoted much attention to it; while in 1882 I ven- 

 tured to give the result of my somewhat lengthy experience 

 and investigations into the pathology of Eoaring.n 



It was not until the present century had been somewhat 

 advanced, and veterinary surgeons were devoting more 

 attention to anatomy and physiology, but especially to 



' "A Compendium of the Veterinary Art," London, 1802. 



2 "A Treatise on Veterinary Medicine," vol. iii., p. 257. 



3 "Elementary Lectures on the Veterinary Art," Part Second, p. 243. 

 " " Hippopathology," vol. ii., p. 36. 



" The Veterinarian, vol. vi., p. 183. ^ Ibid., vol. x. 

 ' Ibid., vol. xi. 8 /ii(/_^ vol. xvii. 



9 Ibid., vol. xxii. i" Ibid., vol. xxvi. 



""Veterinary Journal," 1882, pp. 1, 81, article, "Laryngismus 

 Paralyticus." 



