31. The impurities of water Author(s): Hunt, Alfred E. (Alfred Ephraim), 1855-1899, authorClapp, George H., author Publication: [Philadelphia?] : [publisher not identified], [1888] Subject(s): Water -- analysisWater Supply
32. Report on the waters of the Indianapolis Water Works Co. and of White River together with analyses of the same: made to the Board of Health of the City of Indianapolis Author(s): Van Nüys, T. C. (Thomas C.), author Publication: Indianapolis : Journal Company, 1881 Subject(s): Water SupplyWater -- analysisIndianaIndianapolis Water Works Co.