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  1. A natural arrangement of British plants : according to their relations to each other as pointed out by Jussieu, De Candolle, Brown, &c. ... / with an introduction to botany ... By Samuel Frederick Gray ...
    By: Gray, Samuel Frederick,
    Publication info: London :Baldwin, Cradock, and Joy,1821.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  2. A supplement to the Pharmacopia, and treatise on pharmacology in general : including not only the drugs and preparations used by practitioners of medicine, but also most of those employed in the chemical arts : together with a collection of the most useful medical formulæ ... /
    By: Gray, Samuel Frederick,
    Edition: 6th ed., considerably enl.
    Publication info: London :Longman, Rees, Orme, Brown, Green, and Longman,1836.
    Contributed by: Gerstein - University of Toronto (archive.org)
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