Table 7. — Temperatures C* of Lake Michigan off Milwaukee, Port Washington, and Sheboygan, 

 Wisconsin, 1930 and 1931. Station (Sta. ) numbers under 100 were occupied in 1930; 

 those between 100 and 200 were occupied in 1931. Depths (D) are recorded in meters. 

 Locations of the stations are shown in table 1 and on the map. Thermoclines are in- 

 dicated between two horizontal lines. 



[ C = cruise; D = maximum depths; S = surface ] 



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