Figure 8. --Movements of bottles released along the transect, Waukegan to St. Joseph, 

 June 30. 1931. 



Only three bottles moved more than 90 

 miles; all others were taken within 70 miles. 

 Ten of the bottles were recovered in 41-45 

 days and nine between 55 and 60 days. Most 

 of the former were found on the south and 

 west shores; the latter were distributed on all 

 coasts but mostly on the east shore. Only four 

 (17 percent) of the 23 bottles retained the 

 drag. 



Racine to Grand Haven 



Of the 36 bottles (table 9) released on July 

 17, 1931, along the transect (fig. 9) 27 (75 



percent) were recovered. Only six (22 percent) 

 of these bottles held the drags. The bottles had 

 covered minimum distances from 3-121 miles, 

 an average of 44.2, during a period of 12-96 

 days, an average of 46.3. Half of the bottles 

 from the western part of the transect and all 

 from the eastern landed on the Michigan 

 shore, a total of 20. Along the western shore, 

 three bottles scattered northwest as far as 

 Sheboygan, Wisconsin, and four drifted south- 

 west as far as 1| miles south of Highland 

 Park, Illinois. On the eastern shore, eight 

 were distributed southeast down to St. Joseph, 



19 



