INTELLIGENCE AND SPECIAL SENSES. 179 



dart like an arrow and seize a minnow swimming quietly 

 tliirty feet away, or a Krook Trout flash like a meteor for 

 a dragon fly hovering- near the water at the same distance, 

 must admit that their visual powers are sufficient for all 

 practical purposes. 



It is (piite amusing to hear an angler expatiate learnedly 

 on the dimness of sight and dullness of hearing in fishes, 

 and in the next breath caution the tyro to have his cloth- 

 ing conform as nearly as possible with the hues of the 

 foliage skirting the stream ; to keep out of sight, tread 

 lightly, and make as little noise as possible; and to assure 

 him, tiiat, even then, the chances are that the fish Mill see 

 the novice before he sees the fish. 



It is a curious contradiction of theory and practice, a 

 fishy illustration of the abstract and concrete. The expla- 

 nation I conceive to be this: Our Piscator would be 

 considered a scientific angler, which, in his case, be- 

 comes a contradiction of terms; for while blindly holding 

 to the opinions of some closet naturalist, he is practically 

 following the dictates of his own experience and common 

 sense. 



Now, it is possible to be scientific and an angler, too, 

 but our science, like our angling, must be practical, and 

 must of necessity be learned by close observation and study 

 of the habits of the fishes as they exist in nature, and not 

 alone from the study of the physical construction of a 

 preserved specimen. 



I am well aware that scientists consider fish myopic, or 

 near-sighted; not, however, on account of excessive con- 

 vexity of the cornea, as is popularly supposed, for it is an 

 exploded theory in medical science that myopia depends 

 necessarily upon this condition; indeed, in fishes the 



