Pisciculture. 



Bemy and Gehin, in a valley of the Yosges, 

 after years of patient watching and intelligent 

 reasoning from the facts observed by them, 

 at last discovered the secret, and found that 

 the impregnation of the ovum took place after 

 its exclusion from the ovaries, and when 

 deposited in the gravel, and that the natural 

 process could be imitated artificially, thus 

 giving a certain and easy method for the 

 propagation and increase of any kind of river 

 fish. 



The story of the perseverance and patient 

 endeavour, by which this discovery was made, 

 has a strong element of romance. Concealing 

 himself in the tall grass by the side of the 

 stream, or in the overhanging branch of a tree 

 by day, and by night when the full moon 

 favoured his object, sustained against fatigue, 

 cold, and hunger, by that enthusiasm which 

 has aided so many noble efforts, Eemy desisted 

 not from his pursuit, until he had wrested 

 from Nature the secret which had been so 

 long withheld, and which was destined to 

 confer a lasting benefit upon the human 

 race. 



It has often happened, in scientific pursuits, 



