THE SCALES OF SALMON 



99 



Some "Wired" Smolts Eecaptured as Grilse 



" From the marking we are sure that the fish in 

 the above table were smolts in the spring of 1905, 

 and that they returned to the river as grilse in the 

 summer of 1906, weighing from 2|g lb. in June to 

 9 lb. and more in August. From the scales we learn 

 that all the specimens were a little over two years 

 old in the spring of 1905, when they were migrating 

 as smolts ; that all had spent one summer and one 

 winter in the sea, and before returning had com- 



