90 



M. coste's apparatus. 



development of the fish for a few days. The young animals can 

 only be kept in the saucer about ten or twelve days, and should 

 then be placed in a larger vessel or be thrown into a river. 



I should like to see one of the great rivers of England turned 

 into a gigantic salmon " manufactory." Ponds might be readily 



PISCICULTUKAL APPARATUS. 



constructed on one or two places of the Severn, or on some of the 

 other suitable salmon streams of England or Wales, capable of 

 turning out two miUions of fish per annum, and at a com- 

 paratively trifling cost. The formation of the ponds would be 

 the chief expense ; a couple of men could watch and feed the fry 

 with the greatest ease. The size adopted might be five times 

 that of the ponds on the river Tay, and the original cost of these 

 was less than £500. I would humbly submit that the ponds 

 should be constructed after the manner of the plan I have else- 

 where given. Except by the protecting of the spawn and the 

 young fish from their munerous enemies, there is no way of meeting 

 the present great demand for salmon, which, when in season, is 

 in the aggregate of greater value than the best butcher's meat, 

 dear as beef and mutton now are. The salmon is an excellent 

 fish to work with in a piscicultural sense, because it is large 

 enough to bear a good deal of handling, and it is very accessible 

 to the operations of mankind, because of the instinct which leads 

 it to spawn in the fresh water instead of the sea. It is only such 

 a fish as this monarch of the brook that would individually pay 



