296 



FISHERY BULLETIN OF THE FISH AND WILDLIFE SERVICE 



1790 1810 1830 1850 1870 1890 1910 1930 1950 



YEAR 



Figure 3. — July air temperature deviations from the mean, 1780 to 1953, at New Haven, Conn. (Curve smoothed by 



15-year moving average.) 



1780 



1800 



1840 



I860 1880 



YEAR 



1920 



19 40 



Figure 4. — January air temperature deviations at New Haven, Conn., 1780 to 1953 (solid line), compared with those 

 for the winter months of December, January, and February, 1849-1950 (broken line), at the Bluehill Meteorological 

 Observatory. (Curves smoothed by 5-year moving averages.) 



