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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Lloyd, Humphrey,
    Edition: 3rd ed., rev. and enl.
    Publication info: London, Longmans, Green, 1873
    Holding Institution: University of California Libraries
    Subjects: Light, Wave theory of  Physical optics  
  2. By: Poynting, J. H. (John Henry),
    Publication info: London, Society for Promoting Christian Knowledge, 1910
    Holding Institution: University of California Libraries
    Subjects: Experiments  Light  Light, Wave theory of  Optics