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This collection contains 91 volumes from 72 titles, containing 32625 pages.

  1. By: Marsh, George Perkins,
    Publication info: Boston, Gould and Lincoln, 1856
    Holding Institution: American Museum of Natural History Library
    BHL Collections: Earth Optimism
  2. By: Thoreau, Henry David,
    Publication info: Boston, Houghton, Osgood, 1879, c1864
    Holding Institution: Smithsonian Libraries and Archives
    BHL Collections: Earth Optimism
  3. By: Thoreau, Henry David,
    Publication info: [Not after 1862]
    Holding Institution: Harvard University Botany Libraries
    BHL Collections: BHL Field Notes Project | Earth Optimism
  4. By: Comstock, Anna Botsford,
    Publication info: Ithaca, N.Y, Comstock Pub. Co, 1917?
    Holding Institution: University Library, University of Illinois Urbana Champaign
    BHL Collections: Earth Optimism | Women in Natural History
  5. By: Muir, John,
    Volume: Muir to Engelmann, 1881
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    BHL Collections: Earth Optimism | Engelmann Papers, Missouri Botanical Garden
  6. By: Humboldt, Alexander von,
    Publication info: London, G. Bell, 1892-1900
    Volume: 1
    Holding Institution: University of California Libraries
    BHL Collections: Earth Optimism
  7. By: Humboldt, Alexander von,
    Publication info: London, G. Bell, 1892-1900
    Volume: 2
    Holding Institution: University of California Libraries
    BHL Collections: Earth Optimism
  8. By: Humboldt, Alexander von,
    Publication info: London, G. Bell, 1892-1900
    Volume: 3
    Holding Institution: University of California Libraries
    BHL Collections: Earth Optimism
  9. By: Humboldt, Alexander von,
    Publication info: London, G. Bell, 1892-1900
    Volume: 4
    Holding Institution: University of California Libraries
    BHL Collections: Earth Optimism
  10. By: United States. Revenue-Cutter Service. - Bean, Tarleton H. (Tarleton Hoffman), - Muir, John, - Nelson, Edward William, - Rosse, Irving C,
    Publication info: Washington, Govt. Print. Off, 1883
    Holding Institution: Smithsonian Libraries and Archives
    BHL Collections: Earth Optimism