30 The Salmon 
Jo 
fish are now— 1st August—four years and four months old,and have been 
in the sea two years and two months since they went down as smolts. 
30th April 1907. 
Small spring fish, 13 Ibs. 
25. 
Fic. 

We had no opportunity of getting more marked fish until February 
1908. On 7th February we caught with the net a spring fish weighing 
15 lbs. It was newly from the sea on its first return (Fig. 29). On 
