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  1. Electric lighting
    By: Du Moncel, Th., comte, - Routledge, Robert.
    Publication info: London :G. Routledge,1882.
    Holding Institution: University of California Libraries (archive.org)
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  2. A popular history of science,
    By: Routledge, Robert.
    Publication info: London,G. Routledge and Sons,1881.
    Holding Institution: University of California Libraries (archive.org)
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