Diseases of plants in the Diseases of plants in the United States in 1937 diseasesofplants110wood Year: 1939 Fig. 9° Accumulated temperature in degrees F. at Harrisburg, Pennsylvania, for the year 1937 (dotted line) compared >;ith normal (solid line), and mean monthly temperatures (plain bars) compared ?ath normal (shaded bars). CLi X 0 H 4o +> Fig. 10. Accumulated precipitation in inches at Harrisburg, Pennsylvania, for the year 1937 (dotted line) compared with normal (solid line), and monthly precipitation (plain bars) compared with normal (shaded bars).

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