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  1. The nature and origin of life, in the light of new knowledge; by Felix Le Dantec ... an introductory preface by Robert K. Duncan ...
    By: Le Dantec, Félix Alexandre, - Duncan, Robert Kennedy,
    Publication info: New York,A. S. Barnes and company[1906].
    Contributed by: Kelly - University of Toronto (archive.org)
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  2. The new knowledge, a popular account of the new physics and the new chemistry in their relation to the new theory of matter.
    By: Duncan, Robert Kennedy,
    Publication info: London,Hodder,1907.
    Contributed by: Gerstein - University of Toronto (archive.org)
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