Fig. 22.~'- Bull 'J'roLii " (Sib.) from the Ri\-er Aln. 



4tli year 



3r(l year. 



Fig-. 23.-— .Scale of Ri^-er Aln "Bull trout" (Sib.), indicatint 

 growth .similar to that of a .small stnnmer salmon. ( x lO.) 



Fresh water lite, 2 yeai'S ; attei' riiigi'atiuH, 2J. year^, -Vi^e. 4!, yeai'S. 



Fig. 24. — A N(jr\vegian " Btill TrotU " (Si \h.). 



Sec pages 05—07. 



