U.S. B. F.—Doc. 633, 
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CHART EXHIBITING THE RELATION OF THE DAILY MAXIMUM, MINIMUM, AND MEAN TEMPERATURES OF THE AIR AND THE MEAN SURFACE OF THE WATER 
OF FIRST CONNECTICUT LAKE JULY 1 TO SEPTEMBER 6 1904. 
SYMBOLS. 
[Temperatures in degrees Fahrenheit.] 
—-—— + - —— -_—. Mean temperature of air. 
— —— —— —— —— — Mean temperature of water surface. 
—— Minimum temperature of air, 
——_ —__- ——_ —_ - __ __ Maximum temperature of air. a ° - See 
