Penn. climatological map.
Climatological map of Pennsylvania showing the average temperature, amount of rainfall &c. 1872. By Lorin Blodget. Engraved by W.S. Barnard, N.Y. (Published by Stedman, Brown & Lyon, Philadelphia, 1872)
David RumseyBlodget, Lorin
1872
1872
Stedman, Brown & Lyon
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