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  1. Botanical micro-chemistry; an introduction to the study of vegetable histology, prepared for the use of students by V.A. Poulsen; tr. with the assistance of the author and considerably enl. by William Trelease ...
    By: Poulsen, Viggo Albert, - Trelease, William,
    Publication info: Boston,S.E. Cassino,1886.
    Contributed by: University of Toronto - Gerstein Science Information Centre
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  2. Botanical micro-chemistry; an introduction to the study of vegetable histology, prepared for the use of students by V. A. Poulsen; translated with the assistance of the author and considerably enlarged by William Trelease.
    By: Poulsen, Viggo Albert,
    Publication info: Boston,S. E. Cassino and co.,1886.
    Contributed by: University of California Libraries (archive.org)
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