Read it through once

He came finally to a road from which he could see in the distance dark and agitated bodies of troops, smoke-fringed. In the lane was a blood-stained crowd streaming to the rear. The wounded men were cursing, groaning, and wailing. In the air, always, was a mighty swell of sound that it seemed could sway the earth. With the courageous words of the artillery and the spiteful sentences of the musketry mingled red cheers. And from this region of noises came the steady current of the maimed.