,30 THE NEW AET OF BREEDING FISH. 



fishes' eggs, and on the employment of the process 

 for stocking rivers and ponds. This remarkable 

 work, of which Jacobi was the author, being in the 

 G-erman language, M. de Fourcroy found diflSculty 

 in translating ; Count de Goldstein consequently fur- 

 nished him with it in Latin. The French version 

 from this was published entire in 1773, in the Trea- 

 tise on Fish (Traite Geniral des Piches), by Duha- 

 mel du Monceau, by order of the Academy of Sci- 

 ences.* 



I call Jacobi the author, because, many years be- 

 fore Duhamel's work appeared, or the French version 

 of the memoir sent to M. de Fourcroy by Count de 

 Goldstein was known, M. Gleditsch communicated to 

 the Koyal Academy at Berlin, which inserted it in 

 the collection of its transactions for 1764, a detailed 

 analysis of the paper by Jacobi, for which it was in- 

 debted to Baron Weltheim de Barbke, and which had 

 for its title, "Abridged account of the mode of arti- 

 ficially producing Trout and Salmon, founded upon 

 the practical experience of a skilful naturahst." 

 (" Exposition abregee d'une fecondation artifidelle des 

 Truites et des Saumons, qui est assuree sur des expe- 

 riences certaineSjfaites par un habile naturaliste." f 

 But as the work in question is an abridgment of a 

 memoir in German furnished by Jacobi himself, and 

 as this naturalist proposes in it, in the same terms, 



* Duhamel du Monceau, TraiU dea F4ches, p. 334. Paris, lllZ. 

 t ffist. del Acad. roy. dea ac. et dea helles-lettrea, ann^e ll6i. 

 Berlin, 1776, vol. XX. p. it. 



