Trout Breeding. 



Ill 



banks as to direct the current in exactly the proper 

 place for their formation. The article concludes with 

 the following description of flood-phenomena : 



" 'In a swiftly flowing freshet the current at the 

 surface is mostly in wave-motion. At the banks arise 

 by reflection cross-waves which form with the others 

 by interference of what are usually called "wh'ite caps." 



Fig. 2. 



All the phenomena that appear during quiet flow are 

 heightened in these times of flood — the eddies, the 

 spiral movements, the whirlpools. Also the rapid wear- 

 ing away of the sandy banks in places Where the fric- 

 tion of the current is most powerful makes the whole 

 proceeding evident to the eye,' " 



