Showing 1 - 4 results of 4 for search 'Leffingwell, Albert, 1845-1916', query time: 0.01s Refine Results
  1. 1
    Illegitimacy ; and, The influence of seasons upon conduct : two studies in demography
    by Leffingwell, Albert, 1845-1916
    Published 1892
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  2. 2
    The vivisection question
    by Leffingwell, Albert, 1845-1916
    Published 1901
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  3. 3
    Illegitimacy and the influence of seasons upon conduct : two studies in demography
    by Leffingwell, Albert, 1845-1916
    Published 1976
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  4. 4
    Animals' rights considered in relation to social progress
    by Salt, Henry S., 1851-1939
    Published 1894
    Other Authors: “…Leffingwell, Albert, 1845-1916…”
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