116 NATURAL HISTORY OF THE SALMON. 



carried out, will ere long be again well stocked, 

 although it is our opinion that others will require 

 the assistance of artificial propagation to insure 

 that end. 



ATTEMPT TO EAISE THE SALMON FKOM THE OVA TO 

 THE GKILSE STATE ARTIFICIALLY. 



When none of the smoults which were marked 

 with the silver rings had been caught returning 

 as grilse, we resolved to try if it was possible to 

 rear the salmon from the ova up to the grilse state, 

 under our own eye, by means of a salt-water pond 

 into which the sea ebbed and flowed. We found 

 a pond well fitted for the purpose, which had been 

 made at great expense at Stonehaven, in Kincar- 

 dineshire. This establishment was originally in- 

 tended for the purpose of hatching and rearing 

 the fish from the ova up to the full-grown sal- 

 mon. It consisted of two ponds a fresh-water 

 one, 40 X 20 yards, and a salt water one, 60 X 30 

 yards. The water was taken by a pipe from the 

 Water of Cowie, which flows past the place. 

 Where the pipe conveying the water ended, there 

 was a ditch cut, into which the water flowed, and 

 supplied the fresh water pond. Between the 

 fresh and salt water ponds there was another 



