THE HORSE. 69 



caused by this complaint is but slight, the horse giving 

 merely a scarcely perceptible cough on coming out of or 

 going into the stable, and that more in the winter than 

 in summer : the extent of such cough depends upon the 

 atmosphere and cleanliness of his box. Very commonly, 

 horses touched with asthma do not cough when working, 

 nor seem distressed like broken-winded horses. 



Such horses often last many years, fulfilling the 

 functions of their particular class, without incon- 

 venience ; yet, as there is chronic disease present, 

 besides an assumed predisposition to injury of the 

 lungs, they are UNSOUND. 



Crib-Biting. 



Crib-biting is a habit that some horses have, of 

 taking hold of the manger with the teeth, or of resting 

 the jaws upon it, accompanied by a disagreeable noise 

 caused by sucking in and ejecting wind. It is a trick 

 which horses sometimes learn of one another, but it 

 is generally caused by neglect in providing work for 

 these naturally active animals ; by omitting, while young, 

 to keep them, when unexercised, on a mouthing bit ; 

 and by allowing them to stand idle in the stable with 

 no food before them, especially when their heads 

 are tied up, so that they cannot amuse themselves 

 by picking about in their beds. 



The stomach of the horse has a natural tendency 



