Rhodes or by the Common Council, that the Commissioners should place much reliance upon the plans and propositions of a gentleman, .who appears to have given the subject but a very superficial consideration at most. How he is to convey either six or sixteen millions of gallons of water from the mouth of the Croton, in accordance with his first proposition, and at an elevation of 125 feet above low water, at the city of New York, it would puzzle the most expert proficient in hydraulics to tell. By his communication of the 6th of January, 1834, he proposes raising a dam of 45 feet in height, near the Quaker Bridge, which is two or three miles above the mouth of the Cro'ton, from whence the water was to be taken, as first contemplated. From this dam the water is to be carried in iron pipes, and to rise gradually until they pass Sing Sing, and from thence descend to the shores of the Hudson, and so on to the city. He states that these shores "form a straight line, and very few obstacles to overcome;" but the map of the river shows several promontories and bays, with no less than sixteen streams, some of considerable magnitude, to be passed. When he states that the water can be delivered .in the city, at an elevation of 125 feet, while his fountain is only of that height ; that the pipes will rise gradually until they pass Sing Sing, which, in effect, would be making water run uphill, and that he will deliver six million of gallons of wawhen the lowest calculation for laying a line of 30 inch ter, in iron pipes, for $1,700,000, cost $2,798,400, and will only deliver about three millions pipes, 40 miles in length, will of gallons every twenty-four hours we ask, what confidence can be placed in the calcu- ;