This last section is about one half completed, and will easily be completed the next fall. We then arrive at section 92, which is nearly completed, with the exception of the tunnel, which is 420 feet long, through rock, 120 feet of which is excavated. The next section, No. 93, is completed, and the account settled. Section No. 94 crosses the Clendening Valley, and embraces a very heavy stone foundation wall and three arches, or aqueduct bridges, for contemplated streets. This section is about three eighths of a mile long, is about two-thirds finished, and the contract for completion expires next fall. Section 95 is also about twothirds completed. No. 96 embraces the receiving reservoir, which covers a surface of thirty-two acres, at Eighty-sixth-street, and is about one-half completed the contract ex- ;

pires next fall. Sections 97 and 98, together two miles in length, are to be constructed by laying down two lines of iron pipes of thirty-six inches interior diameter, which are to form the connexion between the two reservoirs ; about one-fourth of this work is done. We then come to section 99, which is composed of the distributing reservoir, which work is about one-half completed. In reference to this work it is greatly to be regretted that Forty-second-street should have been reduced to so low a grade, which has increased very greatly the cost of the walls, without adding in any respect to the utility or beauty of the work. This location being higher than any of the adjoining lands, it is not obvious why your predecessors required it to be cut down at so great an expense to the city, and disadvantage to the reservoir, as it required the walls on Forty-second-street to be sunk nearly twelve feet lower, and on the sides, fronting the Fifth avenue and Fortieth-street, an average of eight feet lower than would otherwise have been required.