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1. Selenium occurrence in certain soils in the United States, with a discussion of related topics : seventh report (id:CAT86200942)

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2. Boron distribution in soils and related data (id:CAT86200792)

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3. Selenium occurrence in certain soils in the United States, with a discussion of related topics : sixth report (id:CAT86200778)

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4. Chemical and physical properties of certain soils developed from granitic materials in New England and the Piedmont, and of their colloids (id:CAT86200604)

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5. The chemical composition of soils and colloids of the Norfolk and related soil series (id:CAT86200589)

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6. Selenium occurrence in certain soils in the United States with a discussion of related topics : third report (id:CAT86200596)

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7. Chemical and physical studies of certain Hawaiian soil profiles (id:CAT86200579)

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8. Trace elements in the soils from the erosion experiment stations, with supplementary data on other soils (id:CAT86200547)

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9. Neutralization curves of the colloids of soils representative of the great soil groups (id:CAT86200537)

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10. The comparative moisture-absorbing and moisture-retaining capacities of peat and soil mixtures (id:CAT86200527)

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11. Selenium occurrence in certain soils in the United States with a discussion of related topics, second report (id:CAT86200525)

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12. Chemical studies of infertile soils derived from rocks high in magnesium and generally high in chromium and nickel (id:CAT86200465)

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13. The chemical and physical properties of dry-land soils and of their colloids (id:CAT86200497)

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14. The composition and constitution of the colloids of certain of the great groups of soils (id:CAT86200478)

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15. Selenium occurence in certain soils in the United States with a discussion of related topics (id:CAT86200476)

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16. Base exchange and related properties of the colloids of soils from the erosion experiment stations (id:CAT86200455)

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17. The physical and chemical characteristics of the soils from the erosion experiment stations : : second report (id:CAT86200424)

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18. Base exchange and related properties of the colloids of soils from the erosion experiment stations (id:ORC00000009)

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19. A study of claypan soils (id:CAT86200393)

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20. Character and behavior of organic soil colloids (id:CAT86200371)