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- 114 Plan of the Receiving Reservoir, - - - - - 116 Isometrical View of the Distributing Reservoir, - - - 119 9. " The radiant aqueducts Turn their innumerable arches o'er The spacious desert, brightening in the sun, Proud and more proud in the augu…

to adopt the more expensive plan of maintaining the general inclination of the conduit by vast structures of masonry. By substituting inverted syphons instead of maintaining a uniform declivity in the conduit, would not give the requisite discharge o…

had so augmented, that they were obliged to bring water from distant sources by means of Aqueducts. Appius commenced this scheme of improvement. About 39 years after him, M. Curius Dentatus, who was censor with Papi- rius Cursor, brought water from t…

The following table is made up of data from that work. 17 The table is arranged to show, First, the name of the water or Aqueduct ; Second, the era of its construction ; Third, the length of each Aqueduct in miles and decimals ; Fourth, the cubic fee…

Gauls. It is composed of three ranges of arches one above another. The first range, under which the Gardon flows, is formed by 6 arches ; the second by 11, and the third by 35, all of which are semicircular ; supported upon piers of greater or less h…

this form has suggested the idea that the pipes of 8 inches diameter, when they reached half way down the plane, separated, each one into two of 6 inches diameter which crossed the bridge, and converged into one again half way up the opposite plane. …

vessel had cast anchor in the Rhone, opposite the city, to take some loading ; but when the commander wanted to sail again he could not raise the anchor. This fact attracted much attention, and many people went to witness the singu- lar circumstance.…

on a continuous line for many miles, with a regular inclina- tion from the source to the city, but are interrupted by re- versed syphons. Instead of crossing deep and wide valleys in the usual manner of stone structures, the Aqueduct termi- nates on …

This Aqueduct was commenced in 1753. It is twenty- seven miles long, from the sources which supply it to the gardens of Caserta. The sources are at the base of the mountain called Taburno; the principal one is called Sor- gente de la Sfizzo; it is af…

Saint-Paul, the ancient Symete. It conducts a pure stream of water to the estate of the prince, and at the same time serves as a public bridge over the valley. This bridge is composed of thirty-one arches, the largest of which, over the river, is 90 …

of 2400 feet, by means of several bold arches, of which the largest has a height of about 250 feet, by a breadth of 115. The arches being pointed have an interesting aspect, particularly when viewed from below, the interior of the spacious vaults bei…

and nourished with streams and fountains, and appear to have rivalled those of Asiatic monarchs in splendour. The ruins of the city of Tezcuco, which with its suburbs was even larger than Mexico, and according to Torquemada, contained one hundred and…

skill, patience and ingenuity, and were boldly carried along the most precipitous mountains, fre- 11 42 quently to the distance of fifteen or twenty leagues. Many of them consisted of two conduits, a short distance apart ; the larger of these was for…

they were excellent, as is ap- parent by their works, which remain to this day ; and also they were (then) very ingenious in making Aqueducts for carrying water into dry and scorched lands, such as the greatest part of that country is ; they always m…

some ruins and appearances of them." In describing the temple and gardens at Cusco. Garci- lasso observes, " there were five fountains of water, which ran from divers places through pipes of gold. The cisterns were some of stone, and others of gold a…

the highest part of the 13 50 Janiculum hill, and Dominica Fontana, and Carlo Mederno, furnished the designs for its construction. The front is adorned with six Ionic columns of red granite, on which an attic has a tablet containing an inscription wi…

about 14 feet ; and on its summit stands an Egyptian obelisk formed of red granite, 55 feet in height, and covered with hieroglyphics. At the four sides of the rock are colossal marble statues, which designate the four great rivers in dif- ferent qua…

; While murmurs sooth each awful interval Of ever-falling waters ; shrouded Nile, Eridanus, and Tiber with his twins, And palmy Euphrates ; they with dropping locks Hang o'er their urns, and mournfully among The plantive echoing ruins, pour their str…

summer of 1822, and shortly after the termination of the epidemic, on the 25th of November, the Mayor, in a communication to the Common Council, on subjects relative to the preser- vation of the public health, stated that a very important subject con…

of the project and the ability of the Corporation to meet the expense ; and prefaced that report as follows : — " That they approach the subject as one of vast magnitude and import- ance to an already numerous and dense population, re- quiring our mu…

together with his personal observation, for the subject matter of his report. In a report made to the Board of Aldermen in January, 1833, it was suggested that the failure of the law asked for the year previous, was in consequence of a want of suffi-…

into a Law, and is the one under which, as its main foundation, the work has been constructed. 67 It was further provided, that " in case the plan adopted by the Commissioners shall be approved by the Common Coun- cil, they shall submit it to the ele…

much importance to the city that the supply should be such as not only to answer the present purposes, but be adequate to the future increased demands, and that the quality of the water should be unquestionable, that it became necessary to extend the…

Legislature of New-Jersey as well as that of New- York, and it was also questionable whether such obstructions could be placed in navigable rivers without in- terfering with the powers of Congress to regulate the com- merce of the nation. It was fear…

to be interrupted thereby, and lastly, that there would be a loss by evaporation. It was supposed that these objections might be obviated by certain precautions ; for example, the wash could be avoided by making sufficient side drains ; and the inter…

the natural flow of water at that place, and sets the water back about six miles, forming the Fountain Reservoir which covers an area of about four hundred acres. The country forming the valley of the River was such as to give bold shores to this res…

Croton River where a dam could be constructed that would turn the water into a channel having a gradual descent to the required elevation at the city. So that it may easily be conceived, it is only diverting the water into another channel where it wi…

under the whole length of the Aqueduct like one continuous stone. It attains a degree of hardness which gives it the appearance of the conglome- rate bearing the name of Pudding-stone, and is an article of the greatest importance in forming foundatio…

proportions of the mortar for the brick work, are two parts of sand to one of hydraulic lime. The inverted arch of brick, as well as the brick facing on the sides, is four inches thick, and the roofing arch of brick is eight inches thick. After the m…