90 THE HABITS OF THE SALMON. 



a matter of wonder, to myself and others, what 

 became of the smolts, which must either have re- 

 mained in the sea until they had grown into adult 

 fish, or have run up another river as grilse. Now 

 there is no river in which grilse are found nearer 

 to the Ogmore than the Usk, neither are there any 

 stake nets for taking salmon between the mouth 

 of the Ogmore and the Monmouthshire coast, so 

 we may therefore assume that few, if any, Usk (or 

 for the matter of that. Wye or Severn) fish make 

 their way to these rivers along the Glamorganshire 

 coast. It is possible that Ogmore smolts may 

 travel across to the Somersetshire coast, and run 

 up as grilse along with Usk, Wye, or Severn fish ; 

 but there is not a particle of evidence forthcoming 

 to warrant such an assumption, and for the present 

 we must remain in utter ignorance of their move- 

 ments. Here, again, we might succeed in acquiring 

 some information by marking the fish. 



The same irregularity of habit follows grilse in 

 some of the Norwegian rivers. During the five 



