Figure 9. --Movements of bottles released along the transect, Racine to Grand Haven, 



July 17, 1931. 



five moved eastward near Grand Haven, and 

 seven were scattered northeast up to Arcadia. 

 All five bottles recovered north of Muskegon 

 had traveled between 59 and 121 miles and 

 were not found until 71-96 days. These bottles 

 perhaps had altered their direction after a 

 change of the wind. 



Frankfort to Two Rivers to Nets 



Twenty bottles (53 percent) were returned 

 of the 38 (table 10) released along the transect 

 on July 22 and near the nets off Two Rivers, 



July 23, 1931 (fig. 10). Eight (42 percent)of 19 

 bottles still possessed their drags. Seventeen 

 bottles were recovered in 5-122 days, an 

 average of 33.8, and the other three were 

 found in 1933, 1935, and 1936. Minimum dis- 

 tances were 9-86 miles, an average of 37.0, 

 for 17 bottles; the miles for the other 3 ranged 

 from 104-185, an average of 134.7. 



Thirteen bottles including four from the 

 western part of the transect moved northeast 

 and one southeast. They scattered from about 

 H miles north of Arcadia to the islands of 



21 



