The Salmon 71 
they widen out again during the summer. No river-mark appears in 
these scales, because the fish have not been in fresh water since they 
descended as smolts. 
To many it may seem strange that a grilse the same age as this 
Small Spri 
AS NN “ { 
r) ’ | SM HN \\ aa 

Fic, 66.—93 lbs, 18th February 1907. Marked as Smolt May 1905. 
February spring fish can be 8, 10, or 12 lbs. weight in August the 
previous year, and this spring fish, after having six months more 
feeding in the sea, is yet of less weight. It seems equally strange 
why a fish the same age as the grilse caught on oth August 
weighed 27 lbs. Knowing these things, we need not wonder at a fish 
being caught over 4o lbs. in another year. We have no way of 
knowing what the weight of the grilse that came up in the autumn 
