312 APPENDIX. 



" Eeturned as grilse (after being at sea from thirteen to 

 fifteen months) in June, July, and August, 1863. 



"You. will here see that when the first grilse returned 

 (in June) it must have been three years and four months 

 old. " R. Ramsbqttom, Clitheroe." 



" SiE, — The letter published in your last number from 

 Mr. Francis Francis, referring to the successful result of 

 the artificial production of salmon in the riyer DoohuUa in 

 Ireland, is not only interesting, but highly instructive. It 

 is in this instance demonstrated that the smolts reniained 

 twelve or fourteen months in the sea before they returned 

 as grilse. The same fact was indubitably established at 

 Ballisodare when Mr. Cooper opened the river there to 

 salmon by means of the ladders which he erected over the 

 natural barriers at its mouth, and that at Collooney higher 

 up. These were maiden rivers, and there could be no 

 mistake regarding marking the smolts. The first smolts 

 produced were seen going down, and not a grilse returned 

 for a year after. The same result was evidenced by Mr, 

 Mitchell's markings of smolts in the Tweed, as stated 

 by him to the Parliamentary Committees on the Tweed 

 Bills of 1857 and 1859. 



" I shall abstain, as does Mr. Francis, from comment on 

 this question at present. I ain anxious, however, to add 

 something further relating to the DoohuUa river — I should 

 rather say the Doohulla waters, because there is nothing 

 which can be well dignified by the name of river connected 

 with the concern. There are several small loughs, or lakes, 

 tyhich now discharge through two artificial cuts, one con- 



