THE SALMON 203 
. D. nditi 2 iti ‘ 
River. | puget | Conliionmed: | Detect | Conditionand’ | Observations 
Burrishoole | March 12, 1900 Kelt, 43 Ib. July 12, 1900 | Salmon, 8? lb. | Increase about 90 per 
(Ireland) cent. in 4 months. 
Moy Feb. 19, 1901 Kelt, 4 lb. July 12, r901 | Salmon, 6 lb. | Increase 50 per cent. in 
(Ireland) 4 months 21 days. 
Tay Feb. 11, 1901 Kelt, 8 Ib. March 5, 1902 | Salmon, 19 lb. | Increase about 130 per 
cent. in I year 22 days. 
Brora April 20, 1901 Kelt, 3 lb. July 17, 1901 | Salmon, 83 lb. | Increase nearly 200 per 
cent. in 109 days. This 
fish was recaptured in 
Bighouse Bay, Halla- 
dale, 70 miles from 
Brora Mouth. 
Deveron | Feb. 8, 1902 Kelt salmon- July 19, 1902 | Clean salmon- | Increase Ioo per cent. in 
trout, 3 lb. trout, 6 Ib. 5 months 11 days. 
Avon Feb. 9, 1893 Kelt, 15 lb. Feb. 15, 1894 | Spring fish, | Increase of 18} lb. in 1 
(Hants) 33% lb. year 6 days. 
Avon March 22, 1893 Kelt, 8 lb. March 15, 1894| Spring fish, | Increase of 13} 1b. in 
(Hants) 21% Ib. 358 days. 
Avon March 1, 1893 Kelt, 6 lb. April 3, 1894 | Spring fish, | Increase of 14 lb. 100z. 
(Hants) 20 |b. 10 oz. in 13 months. 
Avon March 27, 1893 Kelt, 8 lb. April 14, 1894 Spring fish, | Increase of 17 lb. in 1 
(Hants) 25 lb. year 18 days. 
Avon March 17, 1893 Kelt, 7 lb. May 3, 1894 Spring fish, | Increase of 16 lb. in 13 
(Hants) 23 Ib. months 16 days. 
From these returns, which may be welcomed as a very 
instructive instalment of what may be expected as the result 
of the extensive and systematic observation and markings of 
fish now being carried on under the Scottish Fishery Board, it 
is abundantly clear that the growth of salmon in the earlier 
stages—from smolt to grilse and from grilse to salmon—is 
exceedingly rapid, but, as might be expected, far from uniform, 
depending, no doubt, partly on the constitution of the 
individual, on its power of assimilating nourishment, and partly 
on its success in finding abundance. Especially interesting are 
Nos. 18, 19, 20, and 21 in the above list, recording the 
recapture of marked smolts, showing an increase of as much 
as 5500 per cent. in weight within fourteen months. It will 
be remarked that all these smolts were recaptured as small 
grilse, whence it may be inferred that Jarge grilse from 5 lb. 
to 10 lb. have remained two whole seasons in the sea without 
