6 SALMONID.E. 



about two inches longer and three ounces heavier. No doubt 

 was entertained that these were two of the Pinks transferred 

 to the lake in the spring of 1836, the first of which had been 

 retained sixteen months, and the other twenty-seven months, 

 in this fresh-water lake. 



Desirous of ascertaining the appearance of the young 

 Salmon at periods intermediate between the states as Pinks 

 and Salmon Peal, other experiments were tried. Pinks in 

 the river Hodder in the month of April are rather more than 

 three inches long, and are considered to be the fry of that 

 year : at this time, Smolts of six inches and a half are also 

 taken. The smolts are considered as the fry of the pre- 

 vious year, and are distinguished by the blue colour on the 

 upper half of their body, the silvery tint of the lower half, 

 and the darker hue of the fins generally as compared with 

 those of the Pink. In this state as to colour, the Smolts are 

 said to have assumed their migratory dress and go down to 

 the sea in May. In June the young Pink in the Hodder 

 measures about four inches ; in July it measures five inches, 

 and no Smolts are then found in the river. To be further 

 convinced of this change, and the length of time required 

 to produce it, a Pink put into a well at Whitewell* in the 

 forest of Bowland in November 1837, was taken out in 

 the state of a Smolt of six inches and a quarter in July 

 1838. In another instance more Pinks by Mr. Upton's 

 directions were put into Lillymere in September ] 837, and 

 Mr. Parker caught five or six in the state of Smolts of seven 

 and a half inches in August 1838. In referring to the par- 

 ticular size of the Pinks in the river Hodder at stated 

 periods, it may be necessary to remark that the Pinks of 

 different rivers, and even in the same river, will be found to 

 vary in size, depending on the time at which the spawn was 

 deposited, the temperature of the season, and other causes. 



* For a view of Whitewell, see British Fishes, vol. ii. p. 88. 



