295 



Bibliografía 



K. Dahl. — «The age and growth of Salmón and Trout in Norway 

 as shonn by theri scales». — London, 1910. 



JoH. Hyort. — «Report on Herring — investigation until — , Janna- 

 ry, 1910». — Publications de Circonstance duConseil Perma- 

 nent International pour l'Exploration de la Mer. Num.> 53.. 



