In 1932, the transect bottles were deposited 

 only from Grand Haven to Sheboygan, from Two 

 Rivers to Frankfort, and from Charlevoix to 

 Manistique; all others were dropped along the 

 shores. Of the 119 recoveries of transect bot- 

 tles, 103 or 86.6 percent were found on the 

 eastern shore and only 16 or 13.4 percent 

 along the western coast. Of the other 212 

 bottles recovered, 173 or 81.6 percent were 

 discovered along the eastern shore and 39 or 

 18.4 percent along the western coast (38 of 

 which were found in Green Bay). It is unusual 

 to find that all 25 recovered bottles deposited 

 from Sheboygan to Sturgeon Bay floated to the 

 eastern shore. Of the entire total of recovered 

 bottles, 276 (83.4 percent) were taken along 

 the eastern shore and 55 (16.6 percent) along 

 the western coast. 



BARNARD, H. E., and J. H.BREWSTER. 

 1909. The character of the water supply of 

 Michigan City, Indiana. First Report of 

 Lake Michigan Water Commission, p. 

 135-189. 



1909b. The sanitary condition of the south- 

 ern end of Lake Michigan, bordering 

 Lake County, Indiana. First Report Lake 

 Michigan Water Commission, p. 191- 

 266. 



CROHURST, H. R., and M. V. VELDEE. 



1 927. Report of an investigation of the pollu- 

 tion of Lake Michigan in the vicinity of 

 South Chicago and the Calumet and 

 Indiana harbors 1924-1925. U.S. Public 

 Health Bulletin No. 170, vii +134 p. 



Most of the bottles had drifted northeast in 

 1931 and northeast and southeast in 1932. 



SUMMARY 



DEASON, HILARY J. 



1932. A study of surface currents in Lake 

 Michigan. The Fisherman, vol. 1, no. 5, 

 p. 3-4, 12. Grand Haven, Michigan. 



The U.S. Bureau of Fisheries conducted 

 studies of movements of drift bottles in Lake 

 Michigan in 1931 and 1932. Releases totaled 

 283 in 1931, 462 in 1932, and 745 in both years. 

 Dates of releases were June 17 to August 17, 

 1931, and May 9 to August 25, 1932. Returns 

 amounted to 186 cards or 65.7 percent of the 

 1931 releases, 331 or 71.6 percent of the 1932 

 releases, and 517 or 69.4 percent for the 

 2 years. 



Most of the recovered bottles dropped along 

 transects moved to the eastern shore. About 

 68 percent of the bottles deposited along the 

 western shore had also floated to the eastern 

 coast. 



LITERATURE CITED 



AYERS, JOHN C, DAVID C. CHANDLER, 

 GEORGE H. LAUFF, CHARLES F. POW- 

 ERS, and E. BENNETTE HENSON. 

 1958. Currents and water masses of Lake 

 Michigan. Great Lakes Research Insti- 

 tute, University of Michigan, Publica- 

 tion No. 3, 169 p. 



HARRINGTON, MARK W. 



1894 Currents of the Great Lakes, as 

 deduced from the movements of bottle 

 papers during the seasons of 1892 and 

 1893. U.S. Department of Agriculture, 

 Weather Bureau Bulletin B. 



1895. Surface currents of the Great Lakes, 

 as deduced from the movements of 

 bottle papers during the seasons of 

 1892, 1893, and 1894. 2d ed. U.S. Depart- 

 ment of Agriculture, Weather Bureau 

 Bulletin B, 14 p. 



HORTON, ROBERT E., and C. E. GRUNSKY. 

 1927. Hydrology of the Great Lakes. Report 

 of the Engineering Board of Review of 

 the Sanitary District of Chicago on the 

 lake lowering controversy and a pro- 

 gram of remedial measures, part III, 

 appendix II, xvii + 432 p. 



JOHNSON, JAMES H. 



1960. Surface currents in Lake Michigan 

 1954 and 1955. U.S. Fish and Wildlife 

 Service, Special Scientific Report-Fish- 

 eries No. 338, viii + 120 p. 



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