of the Fisheri/ Board for Scotland. 



395 



October 1900, when it was al)()ut six months old, to January 19U2, whcu 

 it Avas approaching its third year. On 30th May, when over a year old, 

 the average length was 151 "3 mm., or 5|| inches, and the range from 

 113 mm. to 189 mm, From the end of May until the end of July they 

 increased in mean length from 151-3 mm. to 192*5 mm. or 7^^^ inches, an 

 increment in the sixty-two days of 41-2 mm. (1| inches). The smallest 

 of the series increased by 24 mm., and the largest by 55 mm. (2^ inches). 



Series I. (8th October 1900) to Series II. (15th January 1892). 



