LIST OF ILLUSTRATIONS 



Young salmon artificially reared at the Duke 

 of Richmond and Gordon's ponds near the 

 mouth of the Spey ..... 



Plate I. Dorsal fin of grilse, caught in 1906, 

 with silver mark inserted when the fish 

 was a smolt in 1905 ..... 



Plate II. Measuring length of salmon on 

 marking board and piercing dorsal fin for 

 insertion of mark ..... 



Plate III. Weighing fish suspended by worsted 

 tail band after insertion of mark 



Plate IV. A male salmon in full spawning 

 livery, fresh from the sea in November. 

 The fish has just been marked on the 

 dorsal fin ...... 



Plate V, Scales of grilse and small spring 

 salmon recaptured in 1906 and 1907 

 respectively, each fish having been marked 

 as a smolt in 1905 ..... 



Plate VI. Two scales from a salmon at 

 different stages of growth, when the fish 

 was marked as a kelt and recaptured as a 

 clean fish ...... 



Plate VII. A salmon- marking crew on the 

 Helmsdale, Sutherland .... 



Frontispiece 



To face j^ge oO 



58 



92 



100 



102 



122 



