CHAPTEE III 



SENSE OF SMELL IN FISH. 



Sense of Smell in Fish Midnight Kettle on Tweed Bobbing for Eels 

 Olfactory Organs of Fish Auxiliary Organs of Taste in Pike 

 Scented Baits Sense of Hearing in Fish Effect of Meteoric 

 Changes on Fish Sport-Indicator Fatal Effect of Severe Winters 

 on Trout and Aquatic Insects. 



DO fish, or do they not, possess the sense of srnell ? 

 is a question that has often occupied my thoughts, 

 and on which I have never been able to arrive at any 

 definite conclusion. I am inclined to think, however, 

 from all my observations, that they certainly do to a 

 certain extent ; as all fish that I have seen are furnished 

 with valvular openings or cavities on the upper part of 

 the snout, that have very much the appearance of nostrils, 

 or organs of smell at least, if they do not perform similar 

 functions to those of air-breathing animals. Besides, we 

 have heard of such things as scented worms, and other 

 odoriferous baits being used by the cunning professors of 

 the art, ever since the days of honest old Isaac. More- 

 over, my conviction that certain species of fish, if not all, 

 possess this faculty, is strengthened by experience. 



On one occasion, on the Tweed near Coldstream, I 

 was taking a cast for salmon. The weather was uncom- 



