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  1. 1
    A Descriptive catalogue of the soils of Virginia so far identified in the soil survey
    Published 1913

    Government Document Book
  2. 2
    Reclamation of alkali soils at Billings, Montana

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    Book
  3. 3
    Alkali soils of the United States. : A review of literature and summary of present information /

    Government Document Book
  4. 4
    The action of water and aqueous solutions upon soil phosphates /

    Government Document Book
  5. 5
    Improvement of Virginia fire-cured tobacco /
    by McNess, George Thomas
    Published 1907

    Government Document Book
  6. 6
    Fertility of soils as affected by manures /

    Government Document Book
  7. 7
    Experiments in growing Cuban seed tobacco in Alabama /

    Government Document Book
  8. 8
    Certain organic constituents of soils in relation to soil fertility /

    Government Document Book
  9. 9
    Reclamation of alkali soils at Billings, Montana /
    by Dorsey, Clarence Wilbur
    Published 1907

    Government Document Book
  10. 10
    Reclamation of alkali soils /

    Government Document Book
  11. 11
    Studies on the movement of soil moisture /
    by Buckingham, Edgar
    Published 1907

    Government Document Book
  12. 12
    Effects of shading on soil conditions /
    by Stewart, John Bailey
    Published 1907

    Government Document Book
  13. 13
    Some factors influencing soil fertility /

    Government Document Book
  14. 14
    Absorption of vapors and gases by soils /

    Government Document Book
  15. 15
    The rôle of oxidation in soil fertility /

    Government Document Book
  16. 16
    Heat transference in soils /

    Government Document Book
  17. 17
    Reference list on the electric fixation of atmospheric nitrogen and the use of calcium cyanamid and calcium nitrate on soils /

    Government Document Book
  18. 18
    Fertilizers for corn soils /
    by Whitney, Milton, 1860-1927
    Published 1910

    Government Document Book
  19. 19
    Fertilizers for potato soils /
    by Whitney, Milton, 1860-1927
    Published 1910

    Government Document Book
  20. 20
    The wire-basket method for determining the manurial requirements of soils

    Government Document Book
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