NISKAYUNA was formed from Watervliet, (Albany (Co.,) March 7, 1809. A part of Schenectady was annexed. in 1853. It lies upon the Mohawk, in. the east part of the County. Its surface is chiefly upland, terminating in steep bluffs upon the river valley. The river flats are very fertile and productive. A strip of land about a mile wide, extending back from the bluffs, has a hard clay soil and much of it is swampy and unfit for cultivation. Further south the soil is sandy. Niskayuna, (p. o.) in the south-east corner, is a hamlet. The first settlement of this town was commenced about 1640. Among the early settlers were the Clutes, Vedders, Van Vrankens, Groots, Tymesons, Pearces, Jansens and Van Bockboovens. The canal crosses the Mohawk into this town. on. a magnificent stone aqueduct. By an act of 1805, Alexander was authorized to erect a dam at this place. The population of the town in 1865 was 845, and its area 7,443 acres. There are four school districts, employing the same number of teachers. The number of children of school age is 345; the number attending school 226; the average attendance 117, and the amount expended for. school purposes during the year ending September 30, 1869, was $1,525.66.