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blood may escape into the lung tissue and cause a serious attack of 

 pneumonia, or it may fill uj) the bronchial tubes and prove fatal by 

 suffocating the animal. When the hemorrhage is from the lungs it is 

 accompanied by coughing; the blood is frothy and comes from both 

 nostrils. "Whereas when the bleeding is merely from a rupture of a 

 vessel in some part of the head (heretofore described as bleeding from 

 the nose) the blood is most likely to issue from one nostril only, and 

 the discharge is not accompanied by coughing. The ear may be placed 

 against the windpipe along its course, and if the blood is from the 

 lungs a gurgling or rattling sound will be heard. When it occurs in 

 connection with another disease it seldom requires special treatment. 

 When caused by accident or overexertion the animal should be kept 

 quiet. If the cough is frequent or paroxysmal a dose composed of 2 

 ounces of tincture of opium in 8 ounces of raw linseed oil may be given 

 to allay the irritability, which may stop the hemorrhage by checking 

 the cough. If the hemorrhage is profuse and continues for several 

 hours 1 dram of the acetate of lead dissolved in a pint of water may 

 be given as a drench, or 1 ounce of the tincture of the perchloride of 

 iron, diluted with a pint of water, may be given instead of the lead. 

 It is rare that the hemorrhage is so profuse as to require internal reme- 

 dies. But hemorrhage into the lung may occur and cause death by 

 suffocation without the least manifestation of it by the discharge of 

 blood from the nose. 



CONSUMPTION. 



Pulmonary consumi^tion, "the same as phthisis or consumption in 

 man," has been described by European authors as affecting the horse. 

 It is mentioned here merely to give the writer an opportunity to say 

 that he never saw a case of it, and never conversed with a veterinarian 

 on the subject who has met with a case in the horse. This fact does 

 not prove that the horse is exempt from the disease, but it at least 

 ]3roves that it must be rare indeed. 



DROPSY OP THE LUNG. 



This condition has been noticed as a result of heart disease, and as 

 it is said almost invariably to terminate fatally, no further notice of it 

 is necessary here. 



HEAVES — BROKEN WIND — ASTHMA. 



Much confusion exists in the popular mind in regard to the nature 

 of broken wind. Many horsemen apply tlie term to all ailments where 

 the breathing is difficult or noisy. Scientific veterinarians are well 

 acquainted with the phenomena and locality of the affection, but there 

 is a great diversity of oi)inion as regards the exact cause. Asthma is 

 generally thought to be due to spasm of the small circular muscles 

 that surround the bronchial tubes. The continued existence of this 



