CITY POINT, May 5, 1864--9 p.m.
(Via Fortress Monroe 11.30 a.m. 6th.)

Lieutenant-General GRANT:
 
We have seized Wilson's Wharf, landing a brigade (Wild's colored troops) there; Fort Powhatan, landing two regiments of same brigade. Have landed at City Point Hinks' division of colored troops, remaining brigades, and batteries. Remainder of both Eighteenth and Tenth Army Corps are now being landed at Bermuda Hundred, above the Appomattox. No opposition thus far. Apparently a complete surprise. Both army corps left Yorktown during last night. Monitors all over the bar at Harrison's Landing and above City Point. The operations of the fleet have been conducted to-day with energy and success. Generals Smith and Gillmore, with the army gun-boats, led the advance during the night, capturing the signal stations of the rebels. Colonel West, with 1,800 cavalry, made demonstration from Williamsburg yesterday morning. General Kautz left Suffolk this morning with 3,000 cavalry for the service indicated in conference with the lieutenant-general. The New York, flag-of-truce boat, was found lying at the wharf with 400 rebel prisoners, which she had not had time to deliver. She went up yesterday morning. We are landing the troops during the night--a hazardous service in the face of the enemy.

BENJ. F. BUTLER,
Major-General.