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Profiles in the History of the U.S. Soil Survey

Douglas Helms, Anne B. W. Effland, Patricia J. Durana - Technology & Engineering - 2008 - 331 pages
Profiles in the History of the U.S. Soil Survey offers a broad-ranging collection of essays chronicling the development of the U.S. Soil Survey and its influence on the history ...
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He Loved to Carry the Message: The Collected Writings of Douglas Helms

Douglas Helms - Boll weevil - 2012 - 735 pages
"[A] collection of writings of Douglas Helms on topics ranging from the history of the cotton boll weevil and the soils of the South to the history of soil and water ...
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The History of Snow Survey and Water Supply Forecasting: Interviews with U.S ...

Douglas Helms, Steven E. Phillips, Paul F. Reich - Government publications - 2008 - 328 pages
In addition to the interview with Work, he provided a typescript article of his recollections, which is provided here.
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Soil Taxonomy: Achievements and Challenges : Proceedings of a Symposium ...

Electronic books - 1984 - 90 pages
Soil taxonomy: its evolution, status and future; The role of soils classification in research planning; The role of soils classification in technology transfer; The U.S. system ...
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