There had not been much haste displayed in the American Army, in changing its position on the Heights of Harlem, made really strong by the outlay of immense labor, notwithstanding the enemy had completely turned its left flank, occupied a position on its rear, and with the veriest mite of an effort was capable of throwing a strong force across its entire rear, of seizing every line of communication and every strong position, and of forming such a line of offensive operations, covered, on either flank, by the ships off Tarrytown and the fleet off Throgg's-neck, which the Americans, in their generally unknown weakness and poverty of supplies, could scarcely have hoped to overcome. But General Washington had a lingering suspicion that the movement of the enemy to Throgg's-neck was only a feint; that he remained in that unseemly position only to await the proper time when he could quickly embark again, and drop down to Morrisania, on one tide ; and that

by Claude Joseph Sauthier, a celebrated Engineer in the service of the King, and published by William Faden, in London, in 1777 ; the other, drnwuby the Engineers of the American Army for, and preserved by, General Washington, and engraved, from tlic original niannscript, for the illustnition of the original edition of Chief-justice Marshall's Life of George Wmhintfion, published in I'hiladelphia, in 18(14.

Asboth of these Maps weie originally official, one British and the other American ; asboth were published from the respective manuscripts, as nearly as possible in fac-Hinih- ; and as both are historical autliorities of the highest character, they will be frequently referred to, in our narrative of the Military Operations in Westchester-ctmnty ; and, in order that our readers may also enjoy the benefits to bo derived from a use of them, wliilo reading the story of Westchester-county's revolutionary history, the Publishers have rc-produced them, at our reepiest, as nearly in exact ftc-fimitc of the original piiblications, as jwssihle.