32 



from the other localities, the samples for this year class, as also 

 for the year class with two winter rings, points to a mixture of at 

 least two growth groups, one having a growth similar to the 

 herrings of the Northumberland coast and the other group having 

 a larger growth. 



1915. — The samples of 1915,''= whilst only three in number, 

 allow of comparison between Northumberland Coast herrings 

 (sample 1) and those traAvled from the Yorkshire coast, about 

 70 miles E.S.E. of the Tyne (samples 2 and 3). 



The first year growth of fish with two winter rings in these 

 samples expressed as percentages was as follows : — 



Percentage at Centimetre?. 

 Sample. 4 5 6 



The herrings with two winter rings from the Northumberland 

 coast had a slightly larger growi:h than those of the trawled 

 herrings. For the herrings with three winter rings, the same can 

 be said. The first year grow^th of this year class was as follow\s : — 



Percentage at Centimetres. 



11 12 13 14 Xcs. 



8 1 2 — • 201 



7 3 — — 154 



4 3 — — 114 



The jjercentages here differ from those of 1914 when there 

 were more herrings with a larger first year growth amongst the 

 trawled samples. The herrings with four winter rings from the 

 trawled samples of the Yorkshire coast had as in 1914 a larger 

 growth than the Northumberland Coast fish, and the oarticulars 

 were as follows : — 



Percentage at Centimetres. 

 Sample. 4 5 6 7 8 9 10 11 12 13 14 Nos. 



1 — — — 13 37 32 11 8 — — — 38 



2 — 3 3 14 22 23 19 13 1 1 — 64 



3 — — — 13 23 .30 21 11 2 — — 56 



1916. — It has been shown from a consideration of the age com- 

 position of the samples taken in June and July, 1916, th^i-t the 



* Report, New Series, V. pajre 19. 



