TROUT FLY-FISHING IN AMERICA 



After all, is not the question of normal eyesight of an- 

 gler or trout one which is governed solely by conditions 

 and their "viewpoint" through the natural medium of 

 each? 



THE HEARING OF TROUT 



That trout have the sense of hearing, or, at all events, 

 a sense that is an equivalent, and that it is fairly well de- 

 veloped is probably true, but their manner or means of 

 hearing is totally unlike that of mankind. 



Fish have an internal, but no external, ear, and it is 

 remarkably delicate in construction. On this account 

 sound reaches the ear of a trout through the water due to 

 vibrations caused by concussion and the concussion is 

 produced from jars or shocks, either upon or in the water 

 and from the earth in close proximity. 



Scientists tell us that fish are incapable of hearing 

 sound produced in the air, but to what extent this is really 

 true is a question, in view of the number of instances that 

 would tend to discredit this statement. 



Water as a medium of sound is very dense, while air, 

 on the other hand, is not so, and the ear of a trout is fash- 

 ioned to receive sound through this dense medium just as 

 the human ear is fashioned to receive sound through the 

 medium of the air, which is less dense. 



Therefore, it is a safe deduction to make that trout can 

 hear better in the water than they can out of it, and that 



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