18 AMERICAN FISH CULTURE. 



Bertram, in his " Harvest of the Seas," says : " Jacobi, who 

 practised the art for thirty years, was not satisfied with the 

 mere discovery, but at once turned what he had discovered 

 to practical account ; and in the time of Jacobi great atten- 

 tion was devoted to pisciculture by various gentlemen of 

 scientific eminence. Count Goldstein, a savan of that 

 period, also wrote on the subject. The Journal of Hanover 

 had papers on this art, and an account of Jacobi's proceedings 

 was also enrolled in the Memoirs of the Royal Academy of 



Berlin The results arrived at by Jacobi were of 



vast importance, and obtained not only the recognition of 

 his government, but also the more solid reward of a 

 pension." 



It is strange that so important a discovery should not 

 have produced more permanent results, and that it should 

 not have been followed up at that time with, the same suc- 

 cess which has attended the after-discovery of Joseph Remy- 

 Jacobi's mode of hatching the ova of salmon and trout, 

 was the same as that of his predecessor, Dom Pinchon, 

 using gravel, however, instead of sand in his hatching-boxes. 

 Dom Pinchon is the first of whpm it is recorded that he 

 expressed the ova and fecundated it with the milt of the 

 male fish ; the Chinese and Romans had not arrived at this 

 point in their pisciculture. 



In the early part of the present century there was con- 

 siderable controversy amongst naturalists and fishermen in 

 Great Britain, concerning a little fish known as the parr; 

 whether it was a distinct species or the young of the sal- 

 mon. Also, whether the young salmon arrived at its smolt 



