Fii;-. 22.—" Ikill Troul " (S II).) from liu- Kiver Aln. 



4th year 



5r(! year. 



2ini year. 





^ — 1st year. 

 • Centre. 



^.^. 



Fio-. 2,-?. -Scnle of River .\ln " Bull iioiii " (.Sib.), indicaiinj; 

 growlli similar to ihal of a small summer salmon, (x i6.) 



Kresh water life, 2 years ; after iiiif;ratii>ii, 2^ years. Age, 4^ years. 



Fig. J4. — .\ Norwegian " liiill Trout " (8i lb.). 



Sec pages 05 



