ROARING 



545 



ever may be the cause there can be no doubt that the treatment is most 

 troublesome, and often baffles the skill of the most accomplished veterinarian. 

 Blistering and occasionally line firing has been attended with good results. 

 The frequent application of a remedy that is slightly vesiccating, as white 

 oils, turpentine diluted with oil, oil of cantharides, etc., is often beneficial, 

 but before any definite line of treatment is decided upon it will be well to 

 thoroughly examine the back of the mouth with the aid of Huish's speculum 

 or gag. This instrument (Fig. 99) enables one to get a good view of the 

 fauces, and by drawing out the tongue with the hand it may be possible to 

 detect an ulcerated condition of the rima glottidis. If this is found to be 



Fjq. io.— Gag showing Rubber-covered Bars fixed for Operation on Incisors. 



the case an application of solution of nitrate of silver on a camel-hair pencil 

 may do more towards effecting a cure than any other treatment, however 

 long continued. 



Careful dieting in all cases of laryngitis, or of chronic cough from what- 

 ever cause, will do much to alleviate the symptoms. Linseed in various 

 forms is among the most valuable agents to be employed either as a food to 

 be eaten or the expressed oil poured over the usual feed. Most horses will 

 take it readily in this way and even acquire such a liking for it as to look 

 round with dissatisfaction if at any time it is omitted. 



Roaring is the bugbear of the purchaser at the hammer, and not without 

 good reason. The most experienced veterinarian or dealer will often fail to 

 ascertain its existence, in spite of all the artifices he may call into play. 



