116 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



float almost entirely submerged, and with a post card 

 attached to the end of the cork. Nearly 30 % of these 

 have been returned ; most were set free in the northern 

 part of the district, and about 10 % have come south — 

 e.g., No. 34, set free off Duddon outer buoy (Cumberland) 

 on 9th May, was found at Wallasey embankment 

 (Cheshire) on the 18th of May — thus differing from our 

 smaller bottles (see below) which have largely gone north. 

 Possibly this difference in result may be due to the 

 weighted champagne bottles having floated lower in the 

 water or having been carried along near the bottom. 

 Some of them are said to have sunk out of sight when 

 set free, and one was trawled up from 12 miles S.E. of 

 the Bahama Light Ship from a depth of 14 fathoms. 



The first small bottles used, and the printed paper they 

 contained, were described last year. We afterwards 

 adopted a rather larger size of bottle, 8' 5 cm. in length ; 

 and, after various postal difficulties and experiments, we 

 hit upon a convenient size and thickness of private post 

 card, which, ready stamped and addressed, and marked 

 with a distinguishing letter or number, is rolled up in its 

 bottle, and has printed on its back the following : — 



For scientific enquiry into the currents of the Sea. 

 Whoever finds this is earnestly requested to write 



distinctly the date and locality, with full particulars, 



in the space below, and to put the card in the nearest 



post office. 



[No. here] 



Locality, where found 



Date, when found 



Name and address of sender. 



[No. here] 



