46 
On the 17th February and the 18th March samples came from 
10 miles from Cape Wrath, and 14 to 15 miles N.W. by N. from 
Butt of Lewis respectively. These samples were unlike. The 
Butt of Lewis sample had fewer fish with four winter rings, and 
more fish with seven to nine winter rings. The majority of the 
fish in the Cape Wrath sample came between 27 and 29 em., whilst 
the Butt of Lewis sample contained many fish between 31 and 33 
em., and had 14 per cent. under 28 em. As will be seen from the 
following data this difference in size is not so apparent in the 
younger fish with four winter rings, but the larger growth is evident 
in the fish of six, seven and eight winter rings. 









CENTIMETRES, 
Ne Nessie | 
Station. Date. | Biss. | 96 | 07 | 28 | 29 | 30 | 31 | 82 | 38 | 34 | Total. 
| Winter | 
Wick IIT. ...| 17/2/22 | 4 eleeyal) ceo) eS eS | = | |) aoe 
Wick 1V. ..| 18/3/22 a 4 |) Tes) a) ee) ae ep | te 
Wick III. Seale 2/22) oe SP Sy Oe i B= | — | — | ae 
Wick IV. see!! TUSY BYRD) 5 5 a ease 16a a 1|—|]—]| 24 
Wick IIT. soo! IFPRI ota) G sip a BO |) Bijee a=] — | 2a 
Wick IV. se) 18/3/22). S| Sas) 2 oa! ei sil ai ae 
Wick IIT. ..-| 17/2/22 ...) 7 3 Be ee esl) 1) 
Wick 1V. eg /3/220- R= |S a |) Aa) |} — | oe 
Wick III. eee lt 2/22ee eS Sa yy eo | a 
Wick IV. ... 18/2/22 ...| ya SSS) Sv ae TG || |) ae 
| | 





The Peterhead sample of August was from 5 miles east of 
Kinnaird Head. The size ranged principally from 26 to 29 cm. 
Further data will be found in Table I. 
Only one sample was examined from the Firth of Forth, and 
that was caught 9th February, 1922, between Burntisland and 
Alloa. The fish were, generally speaking, a year older than in last 
year's sample, and the size ranged chiefly from 24 to 26 cm., with 
small numbers under 28 and 29 cm. The smaller fish had much 
the same growth, if allowance be made for their being a year 
older, as was found in the sample from the same grounds in 1921. 
A comparison of the size of fish from the year-classes here follows:— 
