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 40
Fig. 1 .—Sluice Gate in Operation, One Gate Open, Des Moines CountyDrainage District No. 1. … Fig. 2.—Suction Side of Lazwell Pumping Plant of Des Moines County Drainage District No. 1. Buff. 304: U. S. Dept. of Agriculture. Plate IV.
Drainage · Pumping machinery
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