SEA- FISHERIES LABORATORY. 171 



five remaining bottles travelled, as mentioned above, com- 

 paratively long distances. 



Two apparently crossed the " still water " area between 

 the Isle of Man and Dundrum Bay, Ireland, and were recovered 

 one off Strangford and the other on the Antrim coast. The 

 distance of the latter from its original station was 115 miles, 

 and the drift gives an average of 1*2 miles per day. Although 

 it seems strange that these bottles traversed an area in which 

 the tide shows a rise and fall and practically no horizontal 

 movement, it may be noted here, that in 1894-5 experiments 

 in which 440 bottles were recovered out of the 1,045 liberated, 

 nearly 12% crossed this area. 



It may just happen that they were carried over during 

 a short period of southerly winds, and assisted to some extent 

 by the slow constant current which there is reason to believe 

 flows northward from the George's Channel and out through 

 the North Channel. 



Of the three bottles picked up on the South Coast of Ireland 

 one travelled 238 miles, a resultant average over the ground 

 of 2 - 31 miles per day. It is known that the ebb-tide in the 

 southern area of the Irish Sea strikes over towards the Irish 

 coast, and it is possible that these bottles may have been 

 carried by it down the Irish coast. 



No bottles seem to have crossed the line between the 

 Calf of Man and Holyhead, and to have entered Liverpool Bay. 



The number of bottles released was small and the experi- 

 ment was too isolated to enable one to draw any definite 

 conclusions. It may be noticed, however, that of the twenty 

 bottles recovered there are two marked groupings ; one of 

 four bottles on the Anglesey coast, found on two successive 

 days in August, and a larger grouping of nine bottles on the 

 east coast of Ireland, all recorded in October. 



Both groups, although found on opposite coasts, contain 

 bottles representing stations from all parts of the line upon 



