LUNG FEVEK. 21 



sweats supervene ; no pulse is to be felt ; the animal gradually 

 sinks, and, in convulsions and delirium, dies." 



It is of the greatest importance to be able to distinguish one 

 disease from another. The death of the horse may be, and 

 often is, the result of a single dose of medicine given under a 

 mistaken notion of the disease. I shall, therefore, point out the 

 diseases for which inflammation of the lungs is most likely to 

 be mistaken, and the principal symptoms which serve to dis- 

 tinguish them. 



It may be mistaken for founder. In lung fever the feet are 

 cold; in founder, hot. In lung fever, the horse drinks with 

 difficulty ; in founder, has no trouble drinking. In lung fever, 

 can not lie down ; in founder, lies down early in the disease, 

 and generally continues lying. In lung fever, peculiar sounds 

 heard on listening to the lungs ; in founder, none. 



Lung fever may be mistaken for pleurisy. In pleurisy, the 

 horse has a great aversion to turning around in a circle, and 

 if he is turned, he grunts or groans with pain. There is also 

 extreme tenderness of the side on pressure. But it must not 

 be forgotten that pleurisy and lung fever often exist together, 

 and the case is then called pleuro-pneumonia. Indeed, a case 

 of either pleurisy or pneumonia can hardly terminate without 

 becoming complicated with the other. 



Lung fever is very uncertain in its duration. It may term- 

 inate fatally in less than eighteen hours ; or it may be protracted 

 for many days, and then prove fatal. Generally, however, if 

 the case is going to end in death, it will be from the second 

 to the fifth day. If the horse lives beyond the fifth day, it is a 

 favorable sign. 



Pneumonia frequently terminates in dropsy of the chest. 

 When this takes place, it is a close observer who is not deceived 

 by the change of symptoms which occurs. The legs and ears 

 become warm ; the appetite returns ; the horse appears more 

 lively, and is thought to be getting well. But the coat remains 

 unhealthy ; there is a yellowish discharge from the nostrils ; the 



