Alexandrien, 24 Rome, its Aqueducts, 13, 14, 15, 16 " " Destroyed by the Goths, 24 supply of water, 20, 45 Decree of Senate relating to 27 Rome, its distribution, 20 " " Carthagenian described, 28 regulations and laws, 25 At Nismes, 29 Rio Janeiro Aqueduct, 75 Lyons, 32 Richmond, Va., Waterworks 82 Segovia, 40 Swape for raising water, 5 Grenada, 40 Superintendent of Roman Aqueducts, 23, 25 Constantinople, 40 Senate, Roman, decree of, relating to Aqueducts,. .27 Lisbon, 69 Segovia Aqueduct, 40 American, 70 Tanks for water, in India, 5 Peruvian, 71 72 Tympanum for raising water, 6 At Tezcuco, 72 Tezcuco Aqueduct, 73 Mexican, 737475 Troy, N. Y. Waterworks, 81 At Palenque, 75 Vitruvius' rules relating to Aqueducts, 8, 12 Rio Janeiro, 75 Well's worshipped in early times, 1 Artesian Well at Crenelle, 67 at Nanterre, 1 Boston Waterworks, 81 St. Winifred's, 1

Chain-pump in early use, 2 6 early in Asia, &c., 2 Castella, 20126 of Ninevah, 2 Carthagenian Aqueduct, '28 Joseph's, at Cairo, 3 " 40 Ancient American, 5 Constantinople . . .

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.