Works by Abbott Payson Usher

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  1.  7
    British Medieval Population. Josiah Cox Russell.Abbott Payson Usher - 1950 - Isis 41 (2):228-229.
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  2.  16
    Inventors' Progress. Joachim G. Leithauser, Michael Bullock.Abbott Payson Usher - 1960 - Isis 51 (1):103-104.
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    Inventing the ShipS. C. Gilfillan.Abbott Payson Usher - 1936 - Isis 24 (2):450-453.
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