Wilsie, both of which, running nearly west, unite soon after crossing the Albany post-road ; here, commingled, they flow through a rocky glen enclosed between high wooded banks. Passing under the arch of the Croton acqueduct, the waters again appear rushing over their stony bed until their further progress is checked by the mill dam. Here a pipe of nine hundred feet in length conveys the water to the neighboring mill, affording a fall of thirty feet to an overshot wheel.

a Thatcher's Military Journal, 259. See Heath's Mem. 76, 294.

THE TOWN OF GREENBURGH.

In the vicinity of the upper clock, the ravine opens and displays a splendid view of the Hudson river. The road passing through the gap of the Greenburgh hills west of the Saw Mill Valley, follows the course of the ancient Indian path, which formerly led to the village of the " Bark Kittle" at the mouth of the Weghqueghe, or Wysquaqua Creek.

The lower landing and ferry are situated some distance south of the creek at the foot of a steep bank. Here is a neat hotel, kept by Mr. Shadrach Taylor, for the convenience of passengers by the ferry, and the daily steamboats that touch at this dock.

Dobb's Ferry was distinguished during the Revolution, as the scene of active military operations. To this fort, October 9, 1776, General Heath ordered Colonel Sargent, with 500 infantry, 40 light horse, Capt. Horton, of the artillery, with two 12 pounders, and Captain Crafts, with a howitzer, to watch the movements of the enemy up the river.**