Canal de L'Ourcq, 63 Artesian at Grenelle, 67 Chapoltepec Aqueduct, .__ 73 Water, old mode of raising, 5 Cincinatti Waterworks, .' 78 various modes of raising, 5 Curatores Aquarum, 13 supply at Rome, 19, 20 " " Decree of Roman Senate in relation to Aqueducts, 27 London, 20 Edinburgh Waterworks, 60 how measured at Rome, 21 Fountains worshipped in early times, 1 Waterworks at London, 53 " at Rome, how supplied, 20 47 60 Edinburgh, Frontinus, superintendent of the Roman Aqueducts, 13 Glasgow 61 Fountaineers, 24 Greenock, 63 Grenada, Aqueduct at, 40 Paris, 63 Glasgow Waterworks, 61 Philadelphia, 76 " 78 Greenock 63 Cincinatti, Crenelle, Artesian Well, 67 Boston, 81 Herculaneum, the ruins of discovered in digging Albany, N. " Y., " a well, 3 Troy. 81 Hydrants, 26 Providence, R. I., 82 Joseph's well at Cairo, 3 Richmond, Va., 82 Jantu of the Hindoos, 5

308 INDEX.

INDEX TO THE MEMOIR. PAGE. PAGE. Lawrence's Water Project, 88 Analysis of Water, Manhattan, 107 " " Livingston's, R. L., do 88 Bronx River and Rye Ponds 108 .

" " Legislature, (Acts of,) 120, 41, 63, 78, 89 City Wells, 108, 109, 110 Allen, Stephen, 100, 2, 15, 78 Macomb's, Robert. Water Project, 100,11 dam, 101 Allen, Horatio, 161, 199 Manhattan Company,. . .85, 98, 99, 104, 5, 7, 9, 11, 20 Alley, Saul, 116, 178 " Water Analysis, 107 Aqueduct, Croton,....106, 24, 37, 39,41, 56, 202, 4, 17 " Artesian Wells Valley, 154, 5, 175, 202, 3, 4, 10 104, 11 116 129 Marcius Baldwin, Loami, Martineau, John, 127, 33, 47, 76 Birdsall, Benjamin, 272, 99 Morrissania Creek 93 Bridge, Quaker, Newcomen's Engine, 86 Bridge, High, .... 150, 6, 64, 5, 8, 9, 75, 81, 3, 191. 24, New York Waterworks, 103 209, 15. " " Well Company, 134 Broadway, Reservoir, Brown, Jos.