80 THE HOKSE AND ITS DISEASES. 



without end ; there is no communication between them, 

 or, if perchance, such communication exists, it constitutes 

 the disease known by the name of broken wind. 



Inflammation of the Lungs. 



Inflammation of the hmgs is sometimes sudden in its 

 attack, but generally preceded by symptoms of fever. 



The pulse is occasionally not much increased in fre- 

 quency, but oppressed and indistinct ; the artery is 

 plainly to be felt under the finger, and its usual size, 

 but the pulse no longer indicates the expansion of the 

 vessel, as it yields to the gush of blood and its contrac- 

 tion when the blood has passed, it is rather a vibration 

 or thrill communicated to a fluid already over distending 

 the artery in a few cases, even this almost eludes the 

 most delicate touch, and scarcely any pulsation is to be 

 detected. 



Symptoms. — The extremities are cold, the nostril is 

 distended, the head thrust out, and the flanks begin to 

 heave. There is a peculiarity in the working of the 

 flanks ; it is not the deep laborious breathing of fever, 

 nor the irregular beating of broken wind, in which the 

 air appears to be drawn in by one effort, while two seem 

 to be necessary to expel it, but it is a quick hurried 

 motion, evidently expressive of j)ain and of inability to 

 complete the action on account of the pain or of some 

 mechanical obstruction. 



The membrane of the nose is of an intensely florid red 

 more vivid in the inside corners of the nostrils, and re- 

 maining concentrated there, if at times it should seem 

 to fade away higher up. 



The countenance is singularly anxious, and indicative 

 of suffering, and many a mournful look is directed at 

 the flanks ; the horse stands in a singular manner, stiff, 

 with his fore-legs abroad, that the chest may be ex- 

 panded as much as possible, and he is unwilling to move 

 lest for a moment he should lose the assistance of the 

 muscles of the arms and shoulders, in producing that 



