148 EXAMINATION OF HORSES 
LECTURE XVIII. 
The ‘“‘Wind” or Respiration—The Respiration and Circulation 
Interdependent—Mechanism of Respiration—‘‘ High Blowers ” 
—‘‘Whistlers ’’—Snoring—Nasal Polypi—Distended Guttural 
Pouches—Roaring, Grunting, Trumpeting—Warts on Vocal 
Cords—Tumours in the Ventricles of the Larynx—Chronic 
Laryngitis— Ulceration of the Larynx—Chronic Cough—Thick 
Wind—Broken Wind—‘ A Wheezer ”—Conclusion—Backing 
the Horse —Turn him round Quickly on the Ground he 
Stands upon—Lastly, Remove his Fore Shoes. 
GENTLEMEN,—Having come to the fourth most import- 
ant point in horse examination—namely, that which 
usually is known as the “wind,” we will proceed much 
in the same way as with the fore foot and the hock, and 
endeavour to arrive at practical results by a logical 
method and compare them with the results arrived at 
empirically. 
The “wind,” or as we term it, the respiration, is a 
function going on by night and hy day—now, then, and 
always, from the animal’s birth to his death. 
It is that process by which air is admitted within the 
horse’s lungs, there to yield up some of its oxygen to the 
oxygen carriers (the red blood corpuscles), and in return 
for this purity, to be loaded with impurities which it 
