WATER SUPPLY ITEMS. NEW WATER-WORKS SYSTEMS AND IMPROVEMENTS. Needham, Mass., extensions, J. W. Leonard. Waterbury, Conn., extensions, N. J. Welton. Quincy, Mass., extensions, F. E. Hall. Jamestown, N. Y., Board of Public Works. North Creek. N. Y., extensions, T. Sullivan. Newburgh, N. Y., improvements, city clerk. Rockville, Mass., plant, A. P. Hammond. Salem, Mass., extensions, H. W. Rogers. Peabody, Mass., extensions, M. M. Quinn. Dayton, O., extensions, J. Tesseyman. La Grange, Ind., system, town clerk. Auburn, Me., extensions, F. M. Jordan. Denver, Col., extensions, D. G. Thomas. Glenwood, Col., system, M. W. Mather. Pasco, Ore., system. II. M. McCartney. Bad Axe, Mich., works, J. M. Donaldson. Bangor, Me., works, M. A. Sinclair. Dunkirk, N. Y., extensions, G. M. Abell. Grand Junction, Col., works, N. Krusen. Franklin Falls. N. IL, extensions, town clerk. Minneapolis, Minn., extensions, F. T. Moody. Mauch Chunk, Pa., extensions, R. Klotz. Troy, N. Y., extensions, E. Dolan.…