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  1. Elementary treatise on the wave-theory of light by Humphrey Lloyd.
    By: Lloyd, Humphrey,
    Edition: 3rd ed., rev. and enl.
    Publication info: London :Longmans, Green,1873.
    Contributed by: University of California Libraries (archive.org)
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  2. Miscellaneous papers connected with physical science / by Humphrey Lloyd. --
    By: Lloyd, Humphrey,
    Publication info: London :Longmans, Green,1877.
    Contributed by: University of California Libraries (archive.org)
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