Telegram To General G. B. Mcclellan.

Washington City, D.C., June 1, 1862. 9.30.

MAJOR-GENERAL McCLELLAN:

You are probably engaged with the enemy. I suppose he made the attack. Stand well on your guard, hold all your ground, or yield any only inch by inch and in good order. This morning we merge General Wool's department into yours, giving you command of the whole, and sending General Dix to Port Monroe and General Wool to Fort McHenry. We also send General Sigel to report to you for duty.

A. LINCOLN.