As soon as Major Tallmadge saw the prisoner, and especially when he observed his manner of walking to and fro on the floor, and turning on his heel to retrace his steps, he was struck with his military deportment, and conceived that he had been bred to arms. Jameson gradually came into the same way of thinking, though there is no proof of his confidence in Arnold having been shaken ; but he agreed with Tallmadge, that it was best to keep Anderson in close custody, till something more should be known about him, or till orders should be received from Arnold or General Washington."* From North Castle the prisoner was subsequently removed to Lower Salem. b

The hills which lie along the western side of the town present a very rough and rocky appearance, and in some places rise to considerable heights. Upon the edge of one of them is a remarkable split rock, which was, in all probability, rent asunder ages

• Spark'H Life of Benedict Arnold, 22G, 7, 8, 0, 30, 31, 32, 33, b See Lewisborou'/li.

COUNTS: OF WESTCHKSTER. 463

ago, by some convulsion of nature. The gap is commonly called Brimstone Alley. Hard by is a dismal cavern, styled the Devil's Den. In the northeasterly corner of the town lies the Dark Valley, a part of wliich falls within the limits of New Castle. From the gloomy woods of this valley issues the northern branch of the Bronx. a On the east side of the Dark Valley rises "VVhifpoor-will Hill, an appellation given to rt on account of its being a haunt of that well known bird.b "The notes of thi'S solitary bird, (observes Wilson, the ornithologist,) from the ideas which are naturally associated with them, seem like the voice of an old friend, and are listened to by almost all with great interest.