A 



CRUISE I-JUNE J-11,1956 



B 



CRUISE n- JUNE 19- JULY 2, 1956 



c 



CRUISE 21- JULY 11-23,1956 



CRUISE 12- JULY 31-AUGUST 13,1956 



D 



STATUTE MILES 



Figure 18, — Release, recovery points, and tracks of bottles traveling 

 at least 3 miles per day along straight-line courses. 

 Trianglesshow release points. Drift rate indicated by 



22 



