HUNTERS 



respiratory tract are included under the follow- 

 ing headings : 



ROARING AND WHISTLING 



Amongst horsemen these terms are very 

 familiar, yet it is astonishing to find that only 

 a comparative few of such have any idea as to 

 the true significance of their meaning. Both 

 terms are expressive of abnormal sounds pro- 

 duced during breathing, whilst the animal is 

 undergoing a variable degree of exertion. The 

 former is a hard blowing sound differing in its 

 intensity, whilst the latter is, by many, regarded 

 as a modification of the former. It is a distinct 

 whistling sound, and the individual possessing 

 it is popularly known as a "whistler." Some 

 authorities regard both roaring and whistling as 

 hereditary^ but indisputable evidence has never 

 been produced to prove the correctness of such 

 a view. In support of the tenability of the 

 hereditary theory in relationship to the pro- 

 duction of roaring, such theorists usually turn 

 to the progeny of Thoroughbreds developing the 

 trouble that has been common to their pro- 



138 



