CONTENTS 
Inrropuctory . , F . . . - Page xiii 
CHAPTER I 
Smolts 
Early ideas concerning smolts—Rearing of smolts in captivity 
— Marine versus fresh water origin.of the salmon — 
Hatching fry from smolt eggs—British smolts descend 
when two years old—Marking of smolts—Habits in migrat- 
ing to the sea— Autumn migrations —Development—of 
smolts in sea—Herr Dahl’s capture of smolts in the sea off 
Norway  . ‘ ‘ ‘ . : : . Pp. 1-29 
CHAPTER II 
_Gtilse 
Return _of marked smolts as grilse ‘is qaleeas season— Habits 
of grilse in the sea—Ascent of grilse from the sea—Habit 
of many to remain in sea beyo ond (_grilse ; stage— Small spring 
er mi He, 
of the salmon—Entrance of salmon to fresh water. not: 
entirely explained by condition of satiety— Reproduction in 
fresh water—Possible “tfaiisferencéof small fish from one 
river to another—Movements of marked grilse along coast 
of Scotland . : ‘ ; : ; : Pp. 30-55 
