of the Fishery Board for Scotland. 



207 





November. 



December. 







T3 





Cm. 



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The curves formed by these figures combined indicate a great group, 

 which includes the greater proportion of the brill between about 34cm. 

 (13 j inches), where a division between groups is most distinct, and 42cm. 

 or 43cm. (1 7 inches). Taking the larger combined series first, for all hauls 

 in November and December, the group extends from 34cm. to 45cm., 

 but the lower part of the descending line of the curve and its form 

 indicate the probability that two groups are combined, the probable 

 division being at 41cm. to 42cm. The great majority of the fishes are 

 aggregated at 37cm. to 40cm., the largest number being at 39cm. and 

 the next at 40cm. (15|-15f inches). 



In the November series the curve and its limits are much the same, the 

 group beginning at 34cm., and it appears to terminate at 44cm. or 45cm. , 



