72 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



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 dis- 

 tinguishing 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] 



The number is marked with blue and black pencils in 

 duplicate on opposite corners of the card, in case of one 

 edge of the card getting worn by moisture ; and the card 

 is so rolled in the bottle that one of these numbers can 

 be read through the glass, in order that a record may be 

 kept of when and where each bottle is set free. Mr. 

 Andrew Scott, Fisheries Assistant at University College, 

 has collated these records with the particulars of finding 

 of those bottles which have been recovered, and I am 

 indebted to him for the details upon which the following 

 statement of results is based. 



Altogether out of the 1000 bottles distributed, over 340 

 or 34 per cent., more than one in three, have been 

 subsequently picked up on the shore, and the paper or post 

 card has been duly filled up and returned to me. I beg 

 to thank the various finders of the bottles for their kindness 



