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Start Over Subjects Floods ✖Remove constraint Subjects: Floods Authors Knapp, Henry F. (Henry Francis), author ✖Remove constraint Authors: Knapp, Henry F. (Henry Francis), author Titles Lecture delivered by Henry F. Knapp, C.E., before the Polytechnic Branch of the American Institute (Cooper Institute), April 24, 1879: river surfaces ✖Remove constraint Titles: Lecture delivered by Henry F. Knapp, C.E., before the Polytechnic Branch of the American Institute (Cooper Institute), April 24, 1879: river surfaces

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  • Lecture delivered by Henry F. Knapp, C.E., before the Polytechnic Branch of the American Institute (Cooper Institute), April 24, 1879: river surfaces1