WITH its cloud of skirmishers in advance,With now the sound of a single shot, snapping like a whip, and now an irregular volley,The swarming ranks press on and on, the dense brigades press on;Glittering dimly, toiling under the sun—the dust-cover'd men,In columns rise and fall to the undulations of the ground,With artillery interspers'd—the wheels rumble, the horses sweat,As the army corps advances.