56 



which in the former case was healthy has undergone degene- 

 ration and become ichorous, This state of things is often 

 mistaken for glanders, in which the discharge is thin and 

 sticky, and generally without any perceptible smell. In 

 some bad cases I have seen, the trephine had to be employed 

 in order to bore into the facial sinuses and cleanse them out. 

 This is generally done with a wash made up of two quarts of 

 warm water in which half a drachm of chloride of zinc is 

 dissolved. Then, with a large syringe, inject this fluid 

 through the opening made. A first-rate wash is also made 

 of one ounce of carbolic acid to one quart of water. If the 

 patient is properly nourished it may run dry. The best 

 medicine in this case is the following : Take of sulphate of 

 copper, nitre and gentian, one drachm each, made into a 

 ball with linseed meal ; give this dose night and morning. 



LARYNGITIS. 



Cause. — The three forms of this disease are usually 

 induced by any or all of the following causes, such as sud- 

 den changes of weather, hot stables, coarse and dirty pro- 

 vender, rank bedding, and irregular work. The three kinds 

 are the sub-acute, acute, and chronic. When that part of 

 the throat called the larynx is the only part affected it is not 

 very dangerous, but when complicated with influenza or 

 other diseases it is a serious business. Through the larynx 

 is the passage to the windpipe or trachea, and it is the 

 mucous membrane lining that organ that is here the seat of 

 inflammation. It may be, as in some seasons, endemic or 

 epidemic ; when it assumes the latter form the cause of this 

 lesion is purely conjectural. 



Symptoms. — The sub-acute form is what is supposed 

 to be a mere cold and sore throat, with a slight cough, loss 

 of appetite, and slight febrile symptoms ; when the animal, 

 by rest and a little ordinary attention, regains health in a 

 few days. It is very different, however, with the acute form. 

 Here we have well marked symptoms : labored breathing, 



