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Start Over Subjects Floods ✖Remove constraint Subjects: Floods 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 Dates by Range 1850-1899 ✖Remove constraint Dates by Range: 1850-1899

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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