[Frederic Shonnard & W.W. Spooner (1900)] from the south side of the Harlem River Bridge to Williams's Bridge was $38,475 per mile, and from Williams's Bridge to White Plains $11,277 per mile. It is noteworthy that the tirst telegraph line through Westchester County was erected (1846) under the superintendence of Ezra Cornell (subsequently the founder of Cornell University), a descendant of Thomas Cornell, of Cornell's Neck. Ezra Cornell was, moreover, a native of this county, having been born at Westchester Landing. He was the father of Governor Alonzo B. Cornell. The beginning of the gigantic Croton Aqueduct enterprise dates from about the same time as the chartering of the first Westchester County railroad. On November 10, 1832, the joint committee on tire and water of the New York City common council engaged Colonel De Witt Clinton, a competent engineer, to examine the various sources and routes of water supply which had been suggested up to that time, and to make a careful report on the subject. Colonel Clinton recommended the Croton watershed as the source of supply, and demonstrated by unanswerable facts that no other source ade-quate to the ultimate needs of the city was available. This report marks the beginning, as a serious undertaking, of the project to conduct the Croton water to the city. The history of New York's water supply is the subject of a monu-mental work by Mr.