100 THE WONDERFUL TROUT 



wakened out of their sulks (or is it jealousy 

 of one another?) 1 ; and of course another 

 factor may be, and probably is, a deficiency 

 in physical energy of these fish, caused by 

 electrical conditions (affecting, as some writer 

 lately put it, the ' condition of their enlarged 

 livers ! '). 



1 Many anglers must have often witnessed what is 

 termed 'moving fish.' Where many are congregated 

 together in a favourite pool, and the salmon-fly passes 

 enticingly over them, one or more, or several of these 

 fish, are 'moved.' Under such circumstances we have per- 

 sistently stoned that pool, and the next time we fished 

 it over we have often taken a fish promptly when the 

 salmon-fly hung over the favourite lie. In this case fear 

 of one another may have been the dominating factor 

 in their unwillingness to rise to the surface. 



