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Ecological

  1. Report on the lands of the arid region of the United States, with a more detailed account of the lands of Utah
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    Willis Drummond
    Report on the lands of the arid region of the United States, with a more detailed account of the lands of Utah
  2. The flowering plants of Africa
An analytical key to the genera of African phanerograms
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    Franz Thonner
    The flowering plants of Africa
An analytical key to the genera of African phanerograms
  3. A naturalist in Madagascar
A record of observation, experiences, and impressions made during a period of over fifty years' intimate association with the natives and study of the animal & vegetable life of the island
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    James Sibree
    A naturalist in Madagascar
A record of observation, experiences, and impressions made during a period of over fifty years' intimate association with the natives and study of the animal & vegetable life of the island
  4. Fossil plants, Vol. 2: A text-book for students of botany and geology
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    A. C. Seward
    Fossil plants, Vol. 2: A text-book for students of botany and geology

  5. Observations on the Terataspis grandis, Hall, the largest known trilobite

    John Mason Clarke

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    John Mason Clarke
    Observations on the Terataspis grandis, Hall, the largest known trilobite
  6. Aspects of nature, in different lands and different climates (Vol. 1 of 2)
with scientific elucidations
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    Alexander von Humboldt
    Aspects of nature, in different lands and different climates (Vol. 1 of 2)
with scientific elucidations

  7. Report on the Migration of Birds in the Spring and Autumn of 1887. Ninth Report
(Vol. II, No. 4.)

    Richard Manliffe Barrington

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    Richard Manliffe Barrington
    Report on the Migration of Birds in the Spring and Autumn of 1887. Ninth Report
(Vol. II, No. 4.)

  8. Supplement to Harvesting Ants and Trap-Door Spiders

    John Traherne Moggridge

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    John Traherne Moggridge
    Supplement to Harvesting Ants and Trap-Door Spiders
  9. The Clerk of the Woods
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    Bradford Torrey
    The Clerk of the Woods
  10. The Green Dream
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    Bryce Walton
    The Green Dream
  11. The fauna of the deep sea
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    Sydney J. Hickson
    The fauna of the deep sea
  12. The Great Green Blight
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    Robert Emmett McDowell
    The Great Green Blight
  13. Rust, Smut, Mildew, & Mould: An Introduction to the Study of Microscopic Fungi
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    M. C. Cooke
    Rust, Smut, Mildew, & Mould: An Introduction to the Study of Microscopic Fungi
  14. Some Common Birds in Their Relation to Agriculture
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    F. E. L. Beal
    Some Common Birds in Their Relation to Agriculture

  15. Het Leven der Dieren: Deel 3.7, De Weekdieren

    Alfred Edmund Brehm

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    Alfred Edmund Brehm
    Het Leven der Dieren: Deel 3.7, De Weekdieren
  16. Water pollution—Wells
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    Irving A. Watson
    Water pollution—Wells
  17. Histoire d'un ruisseau
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    Elisée Reclus
    Histoire d'un ruisseau
  18. Lichens
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    Annie Lorrain Smith
    Lichens
  19. The Green World
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    Hal Clement
    The Green World
  20. Mammals of Mount McKinley National Park
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    Adolph Murie
    Mammals of Mount McKinley National Park
  21. The Geology of Calvin Coolidge State Forest
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    Harry W. Dodge
    The Geology of Calvin Coolidge State Forest

  22. De Bonte Wei

    Jac. P. Thijsse

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    Jac. P. Thijsse
    De Bonte Wei
  23. Histoire d'une Montagne
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    Elisée Reclus
    Histoire d'une Montagne
  24. Conservation
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    Charles L. Fontenay
    Conservation
  25. Routine for a Hornet
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    Don Berry
    Routine for a Hornet
  26. Trees of the Forest: Their Beauty and Use
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    Anonymous
    Trees of the Forest: Their Beauty and Use
  27. Birds of the National Parks in Hawaii
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    William W. Dunmire
    Birds of the National Parks in Hawaii
  28. Ecology on Rollins Island
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    Varley Lang
    Ecology on Rollins Island
  29. The Crayfish: An Introduction to the Study of Zoology.
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    Thomas Henry Huxley
    The Crayfish: An Introduction to the Study of Zoology.
  30. Keys to Fungi on Dung
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    M. J. Richardson
    Keys to Fungi on Dung
  31. Aspects of plant life; with special reference to the British flora
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    R. Lloyd Praeger
    Aspects of plant life; with special reference to the British flora
  32. The O. S. U. Naturalist, Vol. 1, No. 1, November, 1900
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    Yazar Bilinmiyor
    The O. S. U. Naturalist, Vol. 1, No. 1, November, 1900
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