Anxious to prevent the escape of the Fenians, I sent word to the officers commanding at those places that I was going to attack Fort Erie, and asked when they would be able to co-operate. Subsequently, fresh reports of attempts of the Fenians to escape having reached me, I determined to advance at once. We were about to move when Lt.-Col. the Hon. John Hillyard Cameron came into camp and informed me that the Fenians had escaped. The intelligence caused great mortification in my little force. I desired Major Denison to scour the country and enter the town. He sent me a message that he was informed that there was still a body of Fenians about the old Fort. We at once marched in that direction, skirmishing through the woods. Major Denison soon informed us that they really had escaped. As many scouts and farm people assured us they had not escaped, we took a long sweep through the woods. On our right on Lake Erie, a few stragglers were seen, and four were reported shot. On entering the old fort, traces were found of its having been recently occupied. During the short operation which extended only over forty hours, the troops under my command underwent very great fatigue, and bore it with great cheerfulness. I received all possible support and co-operation from officers of all ranks. The conduct of the men was excellent. A great number of private individuals rendered me service in many ways, and the inhabitants generally exhibited a good and loyal feeling. Mr. Swinyard, Manager of the Great Western Railroad, gave me the benefit of his services in person. He placed at my disposal the resources of the railway; and the officials on the line exerted themselves to render these available. I have the honor to enclose a report of Lieut.-Col. Booker, of his operations on the 2nd inst. GEO. PEACOCKE, Col. and Lt.-Col. 16th Regt. NOTES TO COLONEL PEACOCKE’S REPORT. 1. “The reported want of platform accommodation.” Since the time and the events, persons have spoken largely as to how quickly they would have provided platforms had they been consulted. The Colonel could not consult persons of whose existence he was uninformed. He acted according to the best information. 2. and 3. I had written a criticism on the extraordinary, the unmilitary procedure of Captain Akers, Lieut.-Colonels Dennis and Booker, in taking upon themselves to alter the plans of their superior, Colonel Peacocke, who alone was responsible in the campaign, and from whom they were bound to take instructions; but a statement of Major Denison having been published as these sheets are passing to the press, some portions of it are here cited.