Friday, 3rd. Was going to the river to wash when I was detailed for picket guard. My first experience. Reported with 14 men. Relieved 12 on the Granby road and stayed there till 10 P. M. Drawn in to go with command. Whole body moved at 12. Got ready and fell in. N. gave me the command of a platoon of 20 men. Quite an honor! Horse had belly-ache. Bled him most to death. Had to leave him. Saw Sturtevant coming. Had the rear guard.