CHAP. I.] SYMPTOMS OF INFLAMED LUNGS. 209 



when the animal is heated, either by exercise, food, 

 or close stabling, as before described. How it 

 happens that this organ of animal life is much more 

 frequently deranged than any other, the reader who 

 has well studied the second chapter, pp. 98 — 105, 

 will be at no loss to account for ; adhesion of the 

 pleura, or of the lungs, to the ribs, &c. as described 

 at section 32, being very common : the labour of the 

 horse's action, not to call it pain, is greatly increased 

 thereby, and a certain degree of fever is thus en- 

 gendered and kept up. The animal is in this man- 

 ner always predisposed to acquire cold or catarrh ; 

 and ultimately inflammation of the lungs comes on, 

 if the cold be neglected. Excessive exposure to 

 the rougher elements, and sudden transitions from 

 this state to a hot and crowded stable, as well as the 

 reverse thereof, added to the changes in our humid 

 atmospheric temperature, accounts for the pre- 

 valence of affections of the lungs, in horses of speed 

 especially. Out of the same causes arise several 

 minor evils, to be considered hereafter ; as, 



Simple cold, or catarrh. 

 Broken wind, of three kinds. 

 Roaring. 

 Chronic cough. 



The symptoms of inflamed lungs rapidly follow 

 each other : shivering, difficulty of breathing, loss 

 of appetite and sluggishness, with drooping of the 

 head, become visible in quick succession. In a 

 few hours, if the animal be in good keep, longer, 



