Annual Report 1862. No. 48 Discussion of the Magnetic and Meteorological Observations Made at the Girard College Philadelphia in 1840 '41 '42 '43 '44 & '45
Image ID: cgs06229, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection Photo Date: 1862 Credit: United States Coast Survey Annual Report 1862 • High Resolution Photo Available
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