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1906 No. 25, Isotherms for Months … National Atlas Department of Interior : Iso … |
1906 No. 26, Isotherms for Summer … National Atlas Isotherms for Summer. Isothe … |
1906 No. 26 A, Average possible h … National Atlas Department of Interior : Ave … |
1915 Isotherms for months of the … National Atlas Isotherms for months of the … |
1915 Isotherms precipitation and … National Atlas Isotherms precipitation and … |
1915 Average possible hours of su … National Atlas Average possible hours of su … |
1915 Temperature National Atlas Temperature. (on upper margi … |