168 



TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



ON THE RESULTS OF A DRIFT BOTTLE EXPERIMENT 

 MADE IN 1913. 



By R. J. Daniel, B.Sc. 



In July, 1913, a number of Drift Bottles were released 

 from the Lancashire and Western Sea-Fisheries steamer, 

 " James Fletcher." 



The type of bottle has already been described, and 

 although the notice enclosed was somewhat modified, there 

 was no essential difference fron the original one used.* 



Eighty bottles in all were set free, from eight different 

 stations. Seven of the stations lay on a line east and west 

 (true) from Holyhead to the Kish Light Vessel, Dublin. The 

 first station was made 10 miles west (true) of the North Stack, 

 and six subsequent stations were spaced at distances of five 

 miles from each other. 



The line was run on July 2nd during an ebb tide, and on 

 the following day, July 3rd, on the return journey, the eighth 

 station was established in Lat. 53° 18' N., Long. 5° 24' W., 

 that is, lj miles South (true) of Station IV, and approximately 

 in the centre of the channel, between Holyhead and Dublin. 



The following table gives the order in which the bottles 

 were released : — 







Station. 



1 



No. of bottles 

 released. 



Card numbers. 



July 2nd. 



9.40 a.m. 



I 



10 



1—10 





10.10 a.m. 



II 



10 



11—20 





10.50 a.m. 



III 



10 



21—30 





11.20 a.m. 



IV 



10 



31—40 





11.50 a.m. 



V 



10 



41—50 





12.15 p.m. 



VI 



10 



51—60 





12.45 p.m. 



VII 



10 



61—70 



July 3rd. 





VIII 



10 



71—80 



^Professor W. A. Herdman, 

 Sea -Fishery Lab., page 37. 



F.R.S. Report for 1894 on Lancashire 



