THE YOUNGS HOUSE AFFAIR.

Hudson's River and Bedford ; never to remain Ion" at any one place, that the enemy might not be able to learn their manner of doing duty, or form a plan for striking them in any particular situation. The Colonel had for some days taken post himself at Young's, not far from the White Plains. Capt. Watson, with his company, was with the Lieut. Colonel ; Capt. Roberts and Capt. Stoddard, with their companies, were on the right ; Capt. Lieut. Farley and Capt. Cooper on the left. The force of the enemy consisted of the four flank companies of the first and second British regiments of the guards -- detachments from two Hessian battalions -- some mounted rangers, and mounted refugees, the whole under the command of Col. Norton of the Guards. The roads were so filled with snow that the enemy advanced but slowly, and were obliged to leave their field-pieces behind on the road. They were discovered at a distance by Mr. Campbell, one of our guides, who, from the goodness of his horse, reconnoitered them pretty near. He gave the Lieutenant-Colonel notice of their advancing, and that their force was considerable and advised him to take a Stronger position a little in his rear. Bat the Lieutenant-Colonel was very confident that the enemy were only a body of horse, and that he could easily disperse them, and would not quit his ground. The enemy first attacked a small advance-guard, consisting of a Sergeant and eight men, who behaved well, and meant to reach the main body in season; but were prevented by the horse, and all taken prisoners. The enemy's horse soon appeared in sight of the Americans, discharged their rifles at longshot and waited the coming up of the infantry, when a warm action commenced ; the enemy scattered, taking the advantage of the ground and trees in the orchard, closing up on all sides.