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  1. Elementary physics and chemistry: first stage.
    By: Gregory, R. A. - Simmons, A. T.
    Edition: 1907
    Publication info: London:MacMillan,1899.
    Contributed by: University of British Columbia Library (archive.org)
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  2. Elementary physics and chemistry: second stage.
    By: Gregory, R. A. - Simmons, A. T.
    Edition: 1908
    Publication info: London:MacMillan ,1900.
    Contributed by: University of British Columbia Library (archive.org)
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  3. Elementary physics and chemistry: third stage.
    By: Gregory, R. A. - Simmons, A. T.
    Edition: 1908
    Publication info: London:MacMillan,1900.
    Contributed by: University of British Columbia Library (archive.org)
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