600 MR. J. A. MILNE ON THE 



means uncommon and may weigh as much as 30 lbs. More 

 Cohoes wovild pi^obably be canned if the run did not occur so late 

 in the year, at a time when most of the canning stations are 

 closed for the winter. 



The number liberated from the hatcheries in 1910 was 

 50,424,386, but in some years the numbers have been much 

 greater. 



Text-fiff. 113. 



Scale of Colioe (O. kisutch), $ . 5 lbs. 6 oz. 17tli November, 1911. 



I find the scales of the Cohoes the most difficult of all to read. 

 I have specimens of scales from eighteen fish from Puget Sound 

 and from Shuswap, on the Fraser River. These fish varied in 

 weight from 3 to 18 lbs. What strikes one as most curious is 

 that, with the possible exception of one fish of 5 lbs. 6 oz. 

 (text-fig. 113) in which a few close lines between B and 0, which 

 I think due to a slight check in feeding, may really be the second 

 winter band, their scales show them all to have been of the same 

 age, namely nearing the end of their fourth year. 



I am satisfied that the Cohoes spend the whole of their first 

 year in fresh water. At the end of it they measure, according 

 to their scales, from 2| to 3 inches. One rapid grower, which 

 weighed 15 lbs. near the end of its fourth year, measured as 

 much as 4 inches at the time of migration. The growth in the 



