[J. Thomas Scharf (1886)] are from five hundred to nearly one thousand feet above tide-water. There is but very little level land in the whole township. At different elevations there * are beautiful terraces, or small plateaus, which atlord delightful sites for building. It contains no lakes or ponds worthy of mention. It is quite free from swamps and marshes. There are no very large streams in the town, though there are several fine brooks, which vary greatly in size at different seasons of the year. The town is separated at the eastern border from Mount Pleasant by the Pocantico River, which 1 is a fine stream of water. The northern extremity of the town, above the railroad, is w;ished by the Croton River for a distance of over a mile. The Croton Aqueduct traverses the entire length of the town, crossing the Kill-brook, at Sing Sing, by means of a i magnificent granite arch, of eighty-eight feet span, I and at an elevation above the brook of over one lain-I dred feet. "The Croton Arch" is a very striking feature of our village. The new aqueduct, now in course of construction, will pass subterraneoiisly through the whole length of the eastern border of the township. The prevailing rocks are an imperfect granite, and a gneiss varying much in stratification and solidfty. Many boulders are everywhere to be found, some of which are of great size.