of the Fishery Board for Scotland. 



that made for the Fishery Board for Scotland. The distinguishing 

 inscription was "JB— L10." Another privately marked Grimersta fish 

 was, however, subsequently taken in the Grimersta. It may be that 

 fish of certain localities, notably, perhaps, localities where entrance to 

 fresh water is difficult except at intervals, wander away and eventually 

 enter other streams, but it seems to me that the evidence now collected 

 in Scotland, Ireland, and Norway is sufficient to establish the view long 

 held by reason of observations made in other ways, that the usual habit 

 of the salmon is to return to its own river. 



Kelts Recaptured when Clean Fish. 



Length of Time and Increase of Weight. 



No. 



Sex. 



Weight 

 when 

 Marked. 



Interval 



of 

 Time. 



Increase of 

 Weight. 



Localities. 







Lbs. 



Days. 



Lbs. 







6533 



F. 



3 



141 



3 (sea- 



Deveron — Deveron. 



7707 









trout) 





F. 



6 



196 



6-1 



Tay — Tay Estuary. 



8044 



F. 



6£ 



429 



12| 



Tay—Tay. 



8108 



F. 



8 



558 



12-3 oz. 



Tay-Tay. 



8161 



F. 



14 



556 



19 



Tay — Tay Estuary. 



8171 



F. 



11 



214 



6 



Tay—Tay Estuary. 



8241 



F. 



13 



448 



11 



Tay Estuary— Tay Estuary. 



8306 



F. 



6 



416 



12 



Tummel— Tay Estuary. 



8311 



F. 



13 



447 



4 



Tay—Tay Estuary. 



8329 



F. 



10 



346 



9 



Tummel— Tay. 



8343 



M. 



6 



556 



8| 



Tummel— Tay Estuary. 



9062 



F. 



13 



255 



8-9J oz. 



Tay — Tay Estuary. 



9402 



F. 



4 



176 



6£ 



Tay—Tay Estuary. 



9607 



F. 



3 



109 



3| 



Deveron — Aberdeen Bay. 



9622 



F. 



10 



169 



9 



Deveron — Deveron. 



9639 



F. 



4 



88 



4^ 



Deveron — Coast, Port Errol. 



It is striking that in the Sex column we have only one male out of 

 the sixteen fish enumerated. In my last Report the longest interval of 

 time between marking and recapture was 515 days, or a year and nearly 

 five months. On this occasion, although particulars of fewer fish are 

 dealth with, we have three instances of longer interval of time : — 



8108 being 558 days, with an increase of 12 lbs. 3 oz. 

 8161 „ 556 „ „ „ 19 lbs. 



8343 „ 556 „ „ „ 8| lbs. 



Also, instead of only two cases of upwards of 400 days we have now four 

 cases. Two of these I should like in the first place to refer to, as we 

 receive a certain amount of light on the Spring Fish of the Tay. No. 

 8044 was marked as a female grilse of 6| lbs., in January 1902. In 



