...Purification of the Washington water supply. An inquiry held by direction of the United States Senate Committee on the District of Columbia

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A 2d edition was published 1903 (303 p., 23 pl.) At head of title: Senate Contains Senate report no. 2380, 56th Cong., 2d sess., Feb. 19, 1901, submitted by James McMillan, entitled "The relative merits of the mechanical and the slow sand systems of filtration for the water supply of the District of Columbia". Also, statements, papers and reports by various authorities on filtration of water supplies
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