Keeping Salmon in Fresh Water. 143 



before, were liberated in the pond with the 

 trout ; and these young salmon, notwithstand- 

 ing the enemies they had there already, have 

 succeeded so well, that when the pond was 

 netted last month by order of the Emperor, 

 and in the presence of their Majesties, 

 there were caught, in a single draught of 

 the net, more than 220 pounds' weight. 

 These fish are now 22 months old, weigh 

 on the average about a quarter of a pound, 

 and are 10 to 12 inches in length. M. 

 Coste found, to his great surprise, that all 

 these fish were ready to spawn. The females 

 had their ova matured, and some of their 

 eggs were taken and artificially impregnated 

 at the time. I have seen these eggs, and the 

 embryo is so far developed that they will 

 hatch out in a short time. The possibility 

 of the reproduction of the salmon, in ponds 

 where they are closely shut in, is, then, a fact 

 acquired by science. It is shown here in a 

 manner so general that it cannot be looked 

 upon as an exception, and if nothing comes to 

 interfere with this great experiment, the result 

 must be yet more striking next season, when 

 the fish have attained to a larger size. 



