CHAPTER II. 



ON SALMON. 



THE material on which I have based the statistics of my investigations 

 of the salmon's age and growth is as follows : 



1. Parr and Smolts. (Cf. Table I.). 



1908. Skaugdalselv Rissen 52 fish. 



Orkla 104 



Oselv 59 



1909. Lakselv, Finmarken 71 



Total 286 fish. 



2. Salmon and Grilse. (Cf. Tables III. XIIL). 

 1908. Neighbourhood of Christiansand, Season 



1908 676 fish. 



Moltuen Icehouse, Imsterfjord, Season 1908 261 ,, 



Orkla (lower water) Season 1908 . . 244 

 East Finmarken, July 1908 . . . 89 



Total 1908 . . . 1,270 fish. 



1909. Neighbourhood of Christiansand, Season 



1909 1,614 fish. 



Moltuen Icehouse, Imsterfjord, Season 1909 184 ,, 

 Eugenes, South Varanger, up to com- 

 mencement of July, 1909 . . . 285 



Total 1909 . . . 2,088 fish. 



In addition I have collected a few other examples from various places. 

 All of these have been analysed with reference to the comparative length 

 for age, and also in most cases as regards the weight. The results of this 

 analysis are given in the tables in the Appendix. 



(1.) THE AGE AND CHARACTERISTICS OF PARR AND SMOLTS 

 PRIOR TO MIGRATION. 



In Table 1. 1 have drawn up the analysis of all the parr and smolts 

 which I have examined. I have investigated as to the size, age, sex, and also as 



