64 REPORT ON ARTIFICIAL FISH-CULTURE. 



to procure the species most valued, meet the cost 

 of the daily labor, and give the production an 

 infinite extension. 



It will be perceived,- therefore, that this sum 

 is the smallest trifle, compared with the riches 

 it will produce, for here nothing less is aimed 

 at than to keep the supply of food up to the 

 increased consumption, according to the duty im- 

 posed on governments; hesitation in such case is 

 allowable only when an adequate trial renders 

 success doubtful; but here experience has already 

 furnished such positive results, that there can- 

 not be the least doubt of the success of the 

 operation. 



Time presses, sir, and there are only three 

 months before we come to the breeding season 

 of salmon and trout. If at that time the appa- 

 ratus is wanting we loose the most interesting 

 part of the required work. I trust, then, you will 

 give me the order for a credit of 30,000 francs, 

 immediately open to the engineers of the Rhone 

 and Rhine Canal, and I shall be happy to offer 

 you my assistance for the organization of an es- 

 tablishment so founded and to take my part in 

 the responsibility of an enterprise which will be 

 a signal honor to the administration. 



I cannot terminate this Report, sir, without 

 speaking to you of the propagation of fresh-water 



