GROWTH OF GRILSE INTO SALMON.' 309 



and go to sea with the first floods in May. The 

 following table shows the growth of gilse into 

 salmon : 



Mr. Scrope says, " The above disparity of 

 growth is easily accounted for, since it is not pro- 

 bable that these fish, which were caught, marked, 

 and returned to the river in February, went down 

 to the sea before March, if, indeed, so early : of 

 course they would not increase in growth in fresh 

 water, though they would mend somewhat in 

 weight, after their weak spawning state. Setting 

 these, therefore, aside, it appears that the growth 

 of the last four fish averaged two pounds each 

 per month when they were at sea ; and if they 

 remained in the river after the 4th of March, as 

 it is reasonable to suppose they did, then their 

 growth must have been proportionably greater." 



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