Telegram To General G. B. Mcclellan.

Washington, May 31, 1862. 10.20 Pm.

MAJOR-GENERAL McCLELLAN:

A circle whose circumference shall pass through Harper's Ferry, Front Royal, and Strasburg, and whose center shall be a little northeast of Winchester, almost certainly has within it this morning the forces of Jackson, Ewell, and Edward Johnson. Quite certainly they were within it two days ago. Some part of their forces attacked Harper's Ferry at dark last evening, and are still in sight this morning. Shields, with McDowell's advance, retook Front Royal at 11 A.M. yesterday, with a dozen of our own prisoners taken there a week ago, 150 of the enemy, two locomotives, and eleven cars, some other property and stores, and saved the bridge.

General Fremont, from the direction of Moorefield, promises to be at or near Strasburg at 5 P.M. to-day. General Banks at Williamsport, with his old force and his new force at Harper's Ferry, is directed to co-operate. Shields at Front Royal reports a rumor of still an additional force of the enemy, supposed to be Anderson's, having entered the valley of Virginia. This last may or may not be true. Corinth is certainly in the hands of General Halleck.

A. LINCOLN.