a connection to the Boston and Albany Railroad, and trackage rights northwest to Albany. In the years following, the Harlem Railroad ran some of its trains over the Boston and Albany Railroad from Chatham to Albany. Additional connections could be made to railroads serving North Bennington, Vermont and other points in western Vermont. Chatham is about past the current terminal at Wassaic. In Boston Corners, about north of Wassaic, passengers could make connections to the Central New England Railway (CNE). To the east, the CNE went to Hartford, Connecticut. Westward, passengers could travel to Poughkeepsie, cross the Poughkeepsie Bridge, finally to Campbell Hall. A -long freight branch, from the 1853 purchase of the Spuyten Duyvil and Port Morris Railroad, was built to Port Morris. When the Grand Central Depot opened in 1871, the depot that the line used was changed from being at 26th Street and Fourth Avenue to Grand Central Depot at 42nd Street. Under the New York Central Grade separation and expansion On April 1, 1873, the New York and Harlem Railroad was leased for 401 years to the New York Central and Hudson River Railroad Company. The line then became the Harlem Division of the New York Central. The lease did not include the portion of the line using horse cars. Horse cars were replaced with an underground trolley system in 1897, when it was leased to the Metropolitan Street Railway Company. In 1875, the line was grade-separated and put in an open cut and a viaduct between Grand Central and the Harlem River to reduce the loss of life and to increase speeds. The work was completed for $6 million, of which half was paid by the city. On May 15, 1876, partial rapid transit began on the Harlem Line, with sixteen trains a day running between Grand Central Depot and William's Bridge. These trains made all stops between Grand Central and William's Bridge, with the exception of Jerome Park, which was skipped by half the trains. This was in addition to eight regular trains per day that stopped at William's Bridge. Two new stations were opened at 86th Street and 110th Street, both being exclusively served by the rapid transit service. In 1888, work began on a project to grade-separate the line from Mott Haven to Bedford Park, and to expand the line from two tracks to four tracks, with the additional tracks to be