But the prudence of Captain Davis (in command of the whole National fleet) was amply justified, when the morning came. The whole rebel fleet, under full head of steam, was then discovered by two Federal vessels which were lying close to the shore. These two Union gunboats had steamed cautiously down the river, to reconnoitre the enemy’s position; and having been satisfied with regard to it, had, as cautiously, but with all possible speed, steamed back again to rejoin the fleet. The rebels having seen them, and perceived the haste they made to return, supposed them fleeing in terror, and sent some shots after them, which passed harmlessly, falling into the water beyond. Captain Davis lost no time in preparing his advance to meet the foe. He immediately signalled all his gunboats. In such a case as this transports and mortar-boats were utterly useless. The rams, ready, of course, to render all possible assistance, constituted an independent fleet; and were, therefore, left solely to the command of Colonel Ellet, who was in no way subject to orders from Captain Davis, but was required to report himself only to the Navy Department. Then began one of the most exciting as well as fearful fights that can be witnessed in warfare. Majestically the Union and the rebel fleets approached in line of battle. When within a mile of each other, the combatants opened fire; and for an hour, the thunder of cannon, the flash of fire, and clouds of smoke filled the air. Each moment the two fleets approached nearer and nearer, till, in a brief time they were but a few hundred yards apart, while broadside after broadside, following in rapid succession, was poured in from the black-mouthed cannon upon either side. The combat had begun at a very early hour of the morning, and while it continued to rage the sun of a glorious day in June broke slowly through the crimson splendor of the eastern sky, and looked warmly down upon a scene, the like of which had long been too familiar to his gaze. The river, like a sheet of molten silver, lay smiling beneath the summer sky, placidly reflecting its hues and colors and changes, while the sweet morning air rapidly grew thick, dense, and sulphurous with the smoke that hung like a great dark cloud, growing darker and darker, and shutting out the sun. An incessant roar of cannon, with flash and smoke, followed in rapid succession, and with deafening effect, while the shot and shell that rattled and clattered against the armed ships’ sides rebounded again, and breaking the face of the smooth river sank beneath its quiet waters. The guns had long since awakened the people of the city, who now crowded in a vast throng down to the edge of the bluffs, upon which Memphis is built. The levee was literally swarming, and black with human beings, straining their sight to peer through the dense overhanging clouds of smoke that was shutting the combatants out of view.