Inside Out Library · ExploreLand drainage by means of pumps (1915)Woodward, Sherman M. (Sherman Melville), 1871-, Okey, Charles W. (Charles William), 1886-, United States. Office of Experiment Stations · Washington, D.C. : U.S. Dept. of Agriculture · leaf 59... Y--vn—fpB— .. 50Discharge Pijpe\\ chiri—tirrj ecu Concrefe Supports for Discharge Pipe •u=a-—it … ^4Drainage · Pumping machineryInternet Archive · Public Domain Mark 1.0. Free to use for anything.More pictures from Land drainage by means of pumpsMore like this