FOR PLEASURE AND PROFIT. 



99 



no shadow of do<ubt, and their introduction into suitable- 

 waters is inevitably followed by an enormous increase in the 

 value of the same. Yet, here again, we find hundreds of miles 

 and thousands of acres of water which might contain them 

 absolutely fishless so fa.r as they are concerned. 



It is quite obvious that an exhaustive discourse concerning 

 the complex questions arising in connection with the 

 cultivation of migratory SalmonidaB wooild be quite be- 



THE ENTRANCE TO THE FISH-PASS AT BATTLEBY. 



yond the scope of my present contribution to the 

 literature of fish-culture ; but a work on farming fish for 

 pleasure and profit would, of necessity, be quite in- 

 complete without some reference to the subject. I, there- 

 fore, propose to explain certain practical methods by 

 means of which waters at present inaccessible to migrar 

 tory fish may be populated by salmon and saa-trout. It 

 may be that a fishery you have made, in accordance with plans 

 I have explained, communicates with the sea by way of 

 river or stream, but there exists some obstacle which prevents 



H2 



