Title: Pennsylvania State Weather Service /
Authors: Espy, James P. 1785-1860.; Tatham, W. P.; Ball, H. L.; Partridge, D. A.; Pennsylvania.; Franklin Institute (Philadelphia, Pa.)
Publisher: D.A. Partridge, lith.,
Year: 1893
Subjects: Atmospheric temperature Pennsylvania Maps.; Precipitation (Meteorology) Pennsylvania Maps.; Atmospheric circulation Pennsylvania Maps.