Spring growth. 

 Winter growth. 



Summer growth. 



[ 2nd year as Parr. 

 1st year as Parr. 



Portion of the Scale 

 that is exposed, 

 and is visible on 

 the body of the 

 fish. 



Scale of 14 lb. Cock Salmon caught in the Tay, May 8th, 1911, showing Winter and Summer growth 



(magnified twelve times). 



LIFE OF A SALMON AS READ BY THE SCALE..— I. 



