November 5, 1920] 



SCIENCE 



443 



distribution of the bottles wMch left the Bay 

 of Fundy from two of these sets is shown in 

 the figure, where the interrupted lines merely 

 join the points of setting out and finding of 

 the bottles, and are not intended necessarily 

 to indicate the course which the bottle may 

 have taken. The bottles were set out between 

 June 18 and September 26 in sets spaced in 

 lines across the bay at various distances from 



on the Cape Cod peninsula, the other two on 

 the coast of Maine. (See figure which shows 

 only the bottles of the first two sets.) 



The times when the bottles were found are 

 significant since they establish a minimum 

 rate for the drift. Seven out of the eleven 

 bottles which went to Cape Cod were found 

 between 70 and 80 days after being put out, 

 the shortest time being 73 days. The distance 



MAINE 



NEW BRUNSWICK 



Xs^ 



Drift Bottles 



S«f A, Noi3,5, wifh ing3 put out June i8 

 Set D, Nos.69-]36, without drags put out AugJ 

 Set E, Nos. 173-184. with drags put out Aug. 2 



Pig. 1. 



its entrance. Each bottle contained a Cana- 

 dian postcard on which was printed besides 

 the address of the Biological Station the offer 

 of a reward to the finder who wrote the time 

 and place of finding and posted the card. 

 The bottles were of two kinds; two-ounce 

 bottles and eight-ounce bottles; to the latter a 

 g-alvanized iron drag was attached to hang 

 at a depth of three fathoms, the object of 

 the drag being to minimize the direct eilect 

 of the wind. Fifty-five of these latter bottles 

 with drags were set out and six have been 

 found and reported from outside the Bay of 

 Fundy, to date (August 6, 1920). Three of 

 these were picked up on the Cape Cod penin- 

 sula, the rest on the coast of Maine. Of the 

 two hundred and seventy-five bottles without 

 drags, ten have been reported from outside 

 the bay. Eight of these ten were picked up 



in a straight line from the Bay of Fundy is 

 about 300 nautical miles. The rate of the 

 drift was therefore about four nautical miles 

 per day. 



The drift of these bottles, set out at various 

 times during the summer, indicates a surface 

 movement of the water from the Bay of 

 Fundy through the northwestern part of the 

 Gulf of Maine and striking Cape Cod, the 

 rate of this drift being about four nautical 

 miles per day. 



James W. Mavor 



Union College 



SCIENTIFIC BOOKS 



La Vie Psychique des Insectes. Biblioiheque 

 de Philosophie 8cleniifique. By C. L. 

 BouviER. Paris, Ernest Flammarion, 1918. 

 299 pp. 



