112 a cold: cough, thick wind; [book l 



A cold, simply, or catarrh, commences by inflam- 

 mation of the lining of the wind-pipe, which may be 

 confined to some given part of it, or extend itself 

 generally from the nostrils to the lungs, both in- 

 clusive, much resembling " a cold " in man ; in 

 either case, much matter is secreted, and thrown off 

 by snorting : when the attack is confined to the 

 upper part of the pipe, and lasts some time, the 

 horse becomes a confirmed roarer, Ms groan bearing 

 great resemblance to the roar of some wild animals, 

 and he is equally incurable. 



Chronic cough, is that obstinate cough which 

 remains and plagues the horse long after vain at- 

 temps at curing his cold ought to have taught his 

 tormentors the inutility of their endeavours, and 

 the dishonesty of their prescriptions. Broken wind 

 is of two sorts : the first is caused by the rupture 

 of the air cells of the lungs by over exertion, in 

 which the expirations being slower than the inspi- 

 rations, he is, aptly enough, said to be " broken 

 winded ; " the second kind of broken wind is known 

 by a breathing the direct contrary, and is occasioned 

 by the cold having settled upon the perforations of 

 the branches, and enlarged them, so that the air 

 escapes too readily. Thick icind, on the other hand, 

 arises from the secretion of the pipe getting into 

 the cells of the lungs, and affecting the orifices or 

 perforations by thickening them, so that the air 

 passes through with difficulty. Similar symptoms 

 attend inflammation of the pleura [section 15), 

 particularly when it reaches to the mediastinum, or 



