viii CONTENTS 



OH AFTER III 



Results of Salmon Marking 



Early marking operations Modern method of marking 

 Divided migration Scottish and Irish records showing 

 short and long periods in the sea Increase of weight in 

 kelts recaptured as clean fish Significance of divided 

 migration in regulating fisheries Salmon returning to their 

 own river Recaptures in other rivers Recaptures on the 

 coast Direction of movements on coast Kelts recaptured 

 as kelts Spring fish marked and recaptured Pp. 56-92 



CHAPTER IV 



The Scales of Salmon as Records of the 

 Salmon's Life 



Age of salmon to be told from their scales Progressive growth 

 of the scales Lines of growth on scales The spawning 

 mark Records of marked smolts as shown on scales 

 Records of small spring fish marked as smolts Infrequency 

 of the spawning mark Scales of kelt recaptured as clean 

 fish The average number of lines added Scales of large 

 salmon Salmon disease The bacillus of origin Fungus 

 spreads quickly on dead fish .... Pp. 93-109 



CHAPTER V 



The Feeding of Salmon and Growth of 

 the Genitalia 



Absence of food in salmon taken in fresh water Feeding habits 

 of fry Food of salmon in the sea Nutriment in tissues of 

 estuary as against upper water fish Transference of 

 nutriment from muscles to reproductive organs 



Pp. 110-124 



