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By National Academy of Sciences, Office of the Home Secretary

Biographical Memoirs is a chain of essays containing the existence histories and chosen bibliographies of deceased participants of the nationwide Academy of Sciences. The sequence offers a list of the lifestyles and paintings of a few of the main distinct leaders within the sciences, as witnessed and interpreted through their colleagues and friends. They shape a biographical heritage of technological know-how in America--an very important a part of our nation's contribution to the highbrow background of the area.

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Copyright © National Academy of Sciences. All rights reserved. html BIOGRAPHICAL MEMOIRS SELECTED BIBLIOGRAPHY 1946 With J. W. Spinks. Study of fertilizer uptake by using P32. J. Am. Chem. Soc. 68:2748. 1951 With C. E. Marshall. Ionization of soils and soils colloids. Soil Sci. 72:373-385. 1958 Relation of fertilizer placement to nutrient and crop yield. Interaction of row phosphate and the soil level of phosphorous. Agron. J. 50:535-539. 1961 With J. M. Walker. Ion uptake by living plant roots.

Index of Generic Names of Fossil Plants, 1820-1965. S. Geological Survey Bulletin No. 1300. S. Geological Survey. Copyright © National Academy of Sciences. All rights reserved. html BIOGRAPHICAL MEMOIRS 1972 With T. L. Phillips and P. G. Gensel. Two heterosporous species of Archaeopteris from the Upper Devonian of West Virginia. Palaeontographica 139B:47-71. 1974 With P. G. Gensel and W. H. Forbes. An apparently heterosporous plant from the Middle Devonian of New Brunswick. Palaeontology 17:387-408.

72:373-385. 1958 Relation of fertilizer placement to nutrient and crop yield. Interaction of row phosphate and the soil level of phosphorous. Agron. J. 50:535-539. 1961 With J. M. Walker. Ion uptake by living plant roots. Science 133:881882. A diffusion and mass-flow concept of soil nutrient availability. Soil Sci. 93:39-49. 1963 With J. M. Walker and E. H. Vasey. Mechanisms for the movement of plant nutrients from the soil and fertilizer to the plant root. J. Agr. Food Chem. 11:204-207. 1966 With S.

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