Pennsylvania climatological map Climate yearly temperature rainfall 1872 old map World Fine and very uncommon large

Fine and very uncommon large old engraved map with attractive original outline hand color

but very likely engraved by Hooge

Fine and uncommon original antique print

Martha Washington

Pennsylvania climatological map Climate yearly temperature rainfall 1872 old map World Fine and very uncommon largeClimatological Map of Pennsylvania Showing the Average Temperature, Amount of Rainfall &c. By Lorin Blodget. Issued Philadelphia, 1872 by O. W. Gray. Lovely, early, remarkably detailed Meteorological thematic state map. Among the earliest thematic maps to depict Pennsylvania with this level of scientific fact expressed cartographically. Explanatory key at top right denotes symbols for mean temperature in the summer and winter, with variable shading