Annual Report 1864. No. 38 Discussion of the Magnetic and Meteorological Observations Made at the Girard College, Philadelphia in 1840, '41, '42, '43, '44, &'45
Image ID: cgs06298, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection Photo Date: 1864 Credit: United States Coast Survey Annual Report 1864 • High Resolution Photo Available
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