Telegram To General G. B. Mcclellan.

Washington City, May 15, 1862.

Major-General Mcclellan, Cumberland, Virginia:

Your long despatch of yesterday is just received. I will answer more fully soon. Will say now that all your despatches to the Secretary of War have been promptly shown to me. Have done and shall do all I could and can to sustain you. Hoped that the opening of James River and putting Wool and Burnside in communication, with an open road to Richmond, or to you, had effected something in that direction. I am still unwilling to take all our force off the direct line between Richmond and here.

A. LINCOLN.