RAPPORT 1905—06 ANNEXE C — XXXVIII — 
No. of bottles recovered in successive periods of 4 months. 
Nate Found on No.taken Per- Equivalent annual 
Date Initial No. 
shore in trawls centage percentage 
Series A 
Nov. 17 to Dec. 31, 1904 (six weeks) 390 Les 8) 29 83 
Jan. 1 toy April’30) 1905222523. 3. 305 SR 69 93 54 
Me io Ate, Silo ME Ron ne 236 ie 54 23 54 
Sepi Luo Dee sil wre 182 EL 30 17 43 
Jan. 1to April 30, 1906.......... 152 (3) 21 14 36 
Weng ine NWS; Bil er: 128 (1) 13 10 97 
Series B 
May 25 toJune 30, 1905 (five weeks) 270 Hy 50 19 88 
AUUhy 1 io) Ooi, Bil PERRET EEE 290 (9) 48 99 53 
Nov. 1 to Febr. 98, 1906 ......... 163 (2) 47 29 64 
March 1 to June 30 ............. 114 (1) 16 14 36 
July 1 to Aug. 31 (2 months) ..... 97 Hel 2 ‘a> 4 11 
Series C 
Nov.26to Dec.31, 1905 (five weeks) 129 (6) 4 3 97 
Jan. 1 to April 30, 1906 ......... 119 (17) 16 13 34 
MayalstorAuoa Or 86 (5) 10 12 32 
Since Nov. 17, 1904 there have been in all 789 of my bottom-trailers put 
into the North Sea, of which I have recovered up to August 31st the cards from 
466, or 59 °/o, taken by trawl-nets, and 43, or 5.5°/o, found on the shore; making 
a total of 64:5 °/o recovered in all, and 280 bottles, or 35.5 Jo, as yet unaccounted 
for. Of the 390 bottles of Series A, 272 have been found by trawlers and 4 on 
the shore, leaving only 29°/o not recovered. 
I wish to express my great obligation to the numbers of North Sea fisher- 
men who have filled up and returned me the cards from the bottles. There are 
many ways in which it is possible to check the figures given, and the result has 
been to convince me to a high degree of the care, accuracy, and intelligence of 
the captains of the various nationalities trawling in the North Sea. 
Monthly Summary of number of trailers returned 
Series A | 
390 Bottles put out in a straight line ENE. from 52°15’ N., and 3°0' E. for 
21/4 miles, one bottle every 10 to 13 metres. November 17, 1904. 
