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  1. By: Hilgard, J. E. (Julius Erasmus),
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    Subjects: (Alexander Dallas),  (Julius Erasmus),  1797-1878  1806-1867  1807-1873  1809-1884  1812-1875  1825-1891  Agassiz, Louis,  Bache, A. D  Correspondence  Engelmann, George,  Geomagnetism  Henry, Joseph,  Hilgard, J. E  Letters  Magnetic declination  Mexico  National Academy of Sciences (U.S.)  Observations  United States  United States and Mexican Boundary Survey  United States Coast Survey  Wilson, Henry,  
    BHL Collections: Engelmann Papers, Missouri Botanical Garden
  2. By: Norman, Robert, - Allde, Edward, - Astley, Hugh, - Borough, William,
    Edition: Newly corrected and amended / by M. W.B.
    Publication info: Imprinted at London :By E. Allde, for Hugh Astley,1596.
    Holding Institution: Smithsonian Libraries
    Subjects: Early works to 1800  Geomagnetism  Magnetic declination  Scientific apparatus and instruments