Monday, 21st—We started on our march this morning in a rain which continued all day. We marched fifteen miles and went into camp. The artillery have the preference of the road and because of the muddy roads our division wagon train could not keep up. Our regiment was on train guard. We corralled the wagons four miles in the rear, where the First Division of the Seventeenth Corps went into bivouac, to safeguard the train, since the rebels’ cavalry have appeared both in front and in the rear.