Harrington, Mark W. 



1895. Surface currents of the Great Lakes, as 

 deduced from the movements of bottle 

 papen during the seasons of 1892, 1893, 

 and 1894. U. S.Dept. Agric, Weather 

 Bur. Bull. B. (Revised edition). 14 pp. 



Harvey, H. W. 



1948. The estimation of phosphate and of total 

 phosphorous in sea waters. Jour. Mar. 

 Biol. Assoc. U. K., vol. 27, pp. 357- 

 359. 



U. S. Hydrographic Office 



1955. Instruction manual for oceanographic 



observations. U. S. Hydrographic Office, 

 Pub. No. 607, 2nd ed. , 210 pp. 



Welch, Paul S. 



1948. Limnological methods. 

 Co, , Philadelphia. 



381 pp. Blakiston 



Hile, Ralph 



1949. Trends in the lake trout fishery of Lake 

 Huron through 1946. Trans. Am. Fish. 

 Soc, vol. 76(1946). pp. 121-147. 



Hile, Ralph, Paul H. Bchmeyer, and George F. Lunger 

 1951. Decline of the lake trout fishery in Lake 

 Michigan, Fish. Bull. , U. S. Fish and 

 Wildlife Serv. , vol. 52, pp. 77-95. 



Johnson, James H. 



1958. Surface-current studies of Saginaw Bay 

 and Lake Huron, 1956. U. S. Fish and 

 Wildlife Serv. , Spec. Sci. Rept. : Fish. 

 [In press] 



Moffett, James W. 



1954. Fisheries knowledge increased through 

 research vessel. The Fisherman, vol. 

 22, No. 3, pp. 7, 13-14^ 



Olson, Franklyn C. W. 



1951, A plastic envelope substitute for drift 



bottles. Jour, 

 pp. 190-193. 



Mar, Res, , vol, 10, 



Ruschmeyer, Orlando R, , Theodore A, Olson, and 

 Herbert M, Bosch 



1957, Lake Superior study. School of Public 

 Health, Univ. Minn, , 79 pp. 



Smith, Stanford H, 



1957. Limnological surveys of the Great Lakes- 

 early and recent. Trans. Am. Fish. 

 Soc, , vol. 86 (1956), pp. 409-418. 



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