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  1. Heroes of science, botanists, zoologists, and geologists. Published under the direction of the Committee of General Literature and Education appointed by the Society for Promoting Christian Knowledge.
    By: Duncan, Peter Martin, - Society for Promoting Christian Knowledge (Great Britain).
    Publication info: LondonSociety for Promoting Christian Knowledge1882
    Contributed by: Gerstein - University of Toronto (archive.org)
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  2. The insect world : being a popular account of the orders of insects, together with a description of the habits and economy of some of the most interesting species.
    By: Figuier, Louis, - Duncan, Peter Martin,
    Edition: Rev. and corr. / by P. Martin Duncan.
    Publication info: LondonCassell1892
    Contributed by: Gerstein - University of Toronto (archive.org)
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