578 



MR. J. A. MILNE ON THE 



mind, at once disposes of the idea that these fish go down to the 

 sea ahnost as soon as they are hatched and commence feeding- 

 only when they get there. 



Text-fis-. 98. 



V^i' 



J^'{ 



Scale of a large Haddock {Gadus aglefinus). X about 40. 



Mr. Johnston kindly gave me some of the scales taken from 

 salmon which had been marked as smolts in the estuary of the 

 Tay in the early summer of 1905, The smolts were then on 

 their way to the sea, and the marks wei-e still attached to the 

 fish when subsequently recaptured as salmon. Thus the exact 

 times spent by them in the sea were known, and it was found, 

 as had been expected, that the summer and winter bands on the 



