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  1. By: Lockyer, Norman, Sir,
    Publication info: London, Macmillan and Co, 1887
    Holding Institution: University of California Libraries
    Subjects: Spectrum, Solar  Sun  
  2. By: Allen, Zachariah,
    Publication info: New York [etc.], D. Appleton & Co, 1879
    Holding Institution: University of California Libraries
    Subjects: Gravitation  Solar heating  Sun  Temperature