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1906 No. 25, Isotherms for Months of year National Atlas Department of Interior : Isotherms for M … |
1906 No. 26, Isotherms for Summer. Isotherms … National Atlas Isotherms for Summer. Isotherms for Year … |
1906 No. 26 A, Average possible hours of suns … National Atlas Department of Interior : Average possibl … |
1915 Isotherms for months of the year National Atlas Isotherms for months of the year. (on up … |
1915 Isotherms precipitation and snowfall. Is … National Atlas Isotherms precipitation and snowfall. Is … |
1915 Average possible hours of sunshine in Su … National Atlas Average possible hours of sunshine in Su … |
1915 Temperature National Atlas Temperature. (on upper margin) Temperatu … |