THE NEW ART OF BREEDING FISH. 95 



acclimate salmon in rivers, which, up to this time, 

 hiive not been frequented by that fish-. 



Nothing is easier than to transport eggs just 

 laid,* or living salmon, of which the abdomen is 

 filled either with eggs or milt ; and even when these 

 die on the road, the hatching of their eggs can be 

 attained. In placing the eggs so acquired in stream- 

 lets properly chosen, the young salmon will grow as 

 though spawned there by their parents ; they will 

 emigrate as usual to the ocean, and in its depths 

 they in turn will spawn, and will not fail to return 

 in great numbers to the stream whence they pro- 

 ceeded, and in following its course seekr a proper 

 place for the growth of their progeny. 



We know, in fact, by experiments already old, 

 made in Brittany by Delandes, and by observations 

 of the same kind, repeated in our day, in Scotland 

 by the Duke of Athol, Sir W. Jardine, Mr. Baigrie, 

 Mr. Hayshan and Mr. Young, the Director of the 

 fisheries of the Duke of Sutherland, that guided by 

 a singular instinct comparable to migratory swallows, 

 the salmon after having emigrated far into the sea, 

 returns ordinarily to the water where it was spawned, 

 and the individuals of the same species are so per- 

 petuated in certain rivers without mixing with those 

 of strange waters. It seems to me consequently 

 indubitable, that in the space of a few years, it 



* With due respect to M. Milne Edwards, the transport of such 

 eggs is very difficult, and if this difficulty has finally been obviated 

 by 6€hin it is only after much groping and research. 



