{'[f-^^'l^ t. 



MAY 13 



^ 



JUNE 26 



v-^ 



\ 



AUGUST II 



^ ^ J . ^X SEPTEMBER 26 



/^ <r 



NOVEMBER 8 



5 10 



■ 



NUMBER OF DRIFT 

 BOTTLES RECOVERED 



Figure 12, --Release stations, numbers recovered, and directions of recovery points of 

 sand -ballasted bottles released in 1955 on the Ludington -Manitowoc 



transect. 



23 



