Nebeker, Frederik.
Astronomy and the geophysical tradition in the United States in the nineteenth century : a guide to the manuscript sources in the Library of the American Philosophical Society / Frederik Nebeker.
American Philosophical Society. Library -- Catalogs.
Astronomy -- Bibliography.
Astronomy -- United States -- History -- 19th century -- Manuscripts -- Catalogs.
Geophysics -- Bibliography.
Astronomers -- United States -- Biography.
Geophysics -- United States -- History -- 19th century -- Manuscripts -- Catalogs.
Geophysicists -- United States -- Biography.
Libraries -- Special collections -- Astronomy -- Catalogs.
Libraries -- Special collections -- Geophysics -- Catalogs.
American Philosophical Society. Library.