90 MARVELS OF FISH LIFE 



does not remain here, for continuing his progress he 

 swings round, almost invariably the same way each time, 

 and comes to rest within an inch or two of the place 

 from which he started. 



The whole manoeuvre is an uninterrupted glide, and 

 it is difficult to realise the speed at which the trout is 

 moving until an attempt is made to photograph a rise 

 as seen from below the surface of the water. The two 

 illustrations shown were taken on a bright day, and the 

 photographic working details were : — 



Exposure, 2 -l ,q of a second ; lens aperture, jf 4 ; plate 

 speed, H and D 400 ; distance of lens from the fish about 

 seven feet, and yet the fish going across shows consider- 

 able movement. In explanation of the two photographs : 

 the top one shows the trout having completed the rise, 

 and the fish is seen end on in the act of coming round. 

 The bottom illustration shows him going across. He 

 then swung round once again, and was in position for 

 the next fly. 



It may seem extraordinary that a trout will come 

 back time after time to the same place in the water when 

 apparently that place is no better than a foot or two 

 higher up, but every dry fly fisherman will confirm the 

 fact that he does so. 



The power of controlling their movements is well 

 seen when a worm is thrown into the water, and two 

 fish rush at it from different parts of the pond. Arriv- 

 ing at the food about the same time a collision seems 

 inevitable, but I have never seen trout actually strike 



