THROWING THE FLY. 99 



and would rebound as I have already shown you. 

 If, on the contrary, the rod were brought suddenly 

 and violently, with the " swish" I allude to, from 

 B to x, the line x B c would receive a contrary 

 impetus, which would finally operate on the fly 

 end, and would bring it u all of a heap," almost 

 under the point of the rod upon the water, and 

 far short of the spot intended. 



Again, if no actual spring, nothing except 

 a uniform pull, were given, no superior impetus 

 could be imparted to the fly. The rod would 

 then simply draw the line, and the line the fly after 

 it, as great a distance as the length of rod would 

 admit of, only. 



Again, I need hardly tell you, that at the 

 moment the spring is felt in the fly, the impetus 

 is greater than during any period of its passage, 

 diminishing as it gets towards its destination, and 

 of course retaining some portion of it till it reaches 

 the full stretch of the line, and becomes at rest. 

 If then, while thus occupied in one course, as 

 towards our back, we, with a sudden spring, give 

 it a different course, forwards, there is a strain 

 on the line, not only increased by having to pull 

 the fly as an inert weight, but equal to the force 

 of the spring forwards, plus the dead weight, plus 

 the contrary impetus still in the fly passing back- 

 wards ; thereby incurring a great risk of breaking 

 the gut at E F. 



H 2 



