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  1. Recent progress in the study of variation, heredity, and evolution, by Robert Heath Lock ...
    By: Lock, Robert Heath,
    Publication info: London,J. Murray,1906.
    Contributed by: Kelly - University of Toronto (archive.org)
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  2. Recent progress in the study of variation, heredity, and evolution.
    By: Lock, Robert Heath,
    Edition: [3d ed.]
    Publication info: New York,E. P. Dutton,1911.
    Contributed by: Cornell University Library
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  3. Recent progress in the study of variation, heredity, and evolution, by Robert Heath Lock.
    By: Lock, Robert Heath,
    Publication info: London :J. Murray,1906.
    Contributed by: University of California Libraries (archive.org)
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  4. Recent progress in the study of variation, heredity, and evolution, rev. by Leonard Doncaster, biographical note by Bella Sidney Woolf (Mrs. R.H. Lock)
    By: Lock, Robert Heath,
    Publication info: London,Murray,1920.
    Contributed by: Gerstein - University of Toronto (archive.org)
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  5. Rubber and rubber planting. By R. H. Lock.
    By: Lock, Robert Heath,
    Publication info: Cambridge,University press,1913.
    Contributed by: University of California Libraries (archive.org)
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