THE NEW ART OF BREEDING FISH. 37 



belongs the honor of its application ; for the com- 

 mercial success, if I piaybe allowed the phrase, of the 

 Nortelem enterprise, was obtained under his influence 

 and by putting in practice his ingenious method. 



In giving to industry this new method, science 

 too was put in possession from that time of a means 

 of production which she described in all treaties on 

 the history of fishes, and which may be found even 

 in the Fishing Manuals. Science has unceasingly 

 reproduced this discovery in her annals, and prac- 

 tised it in her laboratories, in order that, wherever 

 the depopulating of streams was producing want, 

 people might know of a remedy for the growing evil. 

 Science, in now bringing forward the fruits of her 

 past experiences, and regulating their present appli- 

 cation to the necessities of the times, only, continues 

 to fulfil her mission. 



We need not then be astonished, after having 

 read what had previously been done, to find, when 

 in 1837 and 1841, the number 'of salmon in the 

 waters of Great Britain commenced diminishing, 

 that Mr. Shaw first, and afterwards Mr. Boccius, pro- 

 fiting by the knowledge of the process, formerly so 

 successful in Hanover that their government had 

 rewarded its author, had recourse to the same pro- 

 cess for the multiplication of this valuable species. 

 The memoir published by Count de Goldstein, 

 that of Jacobi, and the industrial enterprise "at Nor- 

 telem, were the antecedents that guaranteed their 

 success. 



