July 15TH —Gen. Pendleton has given McClellan a, scare, and might have hurt him if he had fired lower. He planted a number of batteries (concealed) on the south side of the river, just opposite the enemy’s camp. The river was filled with gun-boats and transports. At a signal, all the guns were fired, at short range, too, for some minutes with great rapidity, and then the batteries were withdrawn. I happened to be awake, and could not conjecture what the rumpus meant. But we fired too high in the dark, and did but little execution. Our shells fell beyond the enemy’s camp on the opposite side of the river. We lost a few men, by accident, mostly. But hereafter in “each bush they fear an officer.”