[Scientific and natural phenomenon] Calculation of the longitude of Portland by George Blackburn ; Calculation of the longitude of Mountjoy by Captain Moody.
Collection: Osher Collection
Name: [Scientific and natural phenomenon] Calculation of the longitude of Portland by George Blackburn ; Calculation of the longitude of Mountjoy by Captain Moody.
Barcode: 43210
Creator: Blackburn, George, 1765-1823Moody, Lemuel, 1767-1846
Notes: Two oversize sheets of astronomical observations to calculate the longitude of Portland and Mountjoy, Portland, Maine, dated 1821 and 1831.
Date/Date Range Produced: 1821 - 1831
Language: English
Dimensions:
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OCLC:
Donor: Osher
Permenant URL: https://oshermaps.org/map/43210.0001; 43210.0002; 43210.0003; 43210.0004