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  1. From the letter-files of S. W. Johnson, professor of agricultural chemistry in Yale university, 1856-1896, director of the Connecticut agricultural experiment station, 1877-1900; ed. by his daughter Elizabeth A. Osborne.
    By: Johnson, Samuel W. - Osborne, Elizabeth A. (Johnson),
    Publication info: New Haven :Yale University Press; [etc., etc.],1913.
    Contributed by: University of California Libraries (archive.org)
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