The Colonel of the Fourth Michigan Horse Cavalry is Robert H. G. Minty, an officer who has not his superior in the service, and the only one of whom the question is urged, in and out of the army, "Why is he not among the Generals?"--but he being in command of the Second Cavalry Division, the command of the regiment devolved upon the Lieutenant-Colonel, B. D. Pritchard. We had heard of the capture of Lee and the surrender of Johnson, and knew that the fugitive "head" of the Confederacy was being piloted across the State of Georgia. It was certain that he was in the country south of Macon, but it was not known that he had crossed the Ocmulgee River. General Wilson had already sent a force to scour the left bank of that stream, and deeming it important that cavalry should ride the right bank also, to pick up, if not Jeff himself, information that would determine more definitely his whereabouts, ordered Colonel Minty to furnish a regiment for that purpose, and he selected the Fourth Michigan Cavalry. Lieutenant-Colonel Pritchard was sent for, and received his orders with the map spread out before him, noting carefully the fords and ferries of the river, with the roads leading to and from them, and being enjoined to put all under the strictest watch, unless he got information of Davis having crossed the river, in which case he was to exercise his own judgment in pursuing him. How happily that energetic officer carried out his orders the sequel shows. All cavalry movements commence with the "Bugle Call"; and on the seventh of May, at eight o'clock, P. M., the "General" sounded in our camp. Tents were thereupon struck, saddles packed, and full preparations made to march. A half-hour later "Boots and Saddles" rang out, and speedily followed, "To Horse"; then there was mounting with deliberate haste "the steed" or mule, and the "mustering squadrons" went pouring forward in the moonlight, on their night's march. Our course was to Hawkinsville, a village on the bank of the Ocmulgee River. The air was warm, the roads very dusty, and towards morning there were gathering signs of rain. The country passed over was nearly a pine barren, thinly inhabited, but showing some, though very few, good plantations.