1. Report of Professor Nichols to the Water Commissioners, Springfield, Mass Author(s): Nichols, Wm. Ripley (William Ripley), 1847-1886, author Publication: [Springfield] : [publisher not identified], [1878?] Subject(s): Water SupplyWater -- analysisFiltrationMassachusetts
2. Report of Professor W.R. Nichols on the New Bedford water supply Author(s): Nichols, Wm. Ripley (William Ripley), 1847-1886, author Publication: [New Bedford] : [publisher not identified], [1880] Subject(s): Water SupplyWater -- analysisMassachusetts
