Suddenly, a little after nine o’clock, there came a loud explosion,--a dense cloud of smoke was seen hanging over one of the French batteries, and the Russians were observed on the parapets of their works cheering vigorously. The flank fire of the ten-gun battery had blown up one of the French magazines, killing or wounding about fifty men, and blowing the earthwork to atoms. The British batteries were more successful. The principal works opposed to them were on their right front, the Round fort, a Martello tower, which had been faced up with earth. A battery of twenty heavy guns was planted on the top of this tower, and exterior earthwork intrenchments had been thrown up around it, mounted with artillery of heavy calibre. Next, nearly opposite the British centre, was the three-decker, the Twelve Apostles, placed across the harbor creek; and facing their left was the Redan redoubt, carrying about forty cannon, likewise surrounded by intrenchments armed with numerous guns. On the British side, the principal redoubts were, the Crown battery, of 27 guns, in the centre, fronting the Twelve Apostles, and the Green-Mound battery, opposite the Redan redoubt. At half-past three, a red-hot shot from the Russian three-decker, the Twelve Apostles, struck a powder wagon in the Crown battery, which exploded, killing one or two men, but leaving the works of the battery uninjured. The Russians cheered as before, imagining the same injury had been done, as previously to the French. But while they were still cheering, a shell from the Green Mound battery lodged in the powder magazine of the Redan redoubt, and blew it up with a tremendous explosion. A white livid flame suddenly shot high into the air, followed by a report that made the very earth tremble in the Allied lines, and the next minute its garrison of hundreds, blown to atoms, were discovered strewing the ground to a distance around. “In the midst of a dense volume of smoke and sparks,” says an eye-witness, “which resembled a water-spout ascending to the clouds, were visible to the naked eye, arms, legs, trunks, and heads, of the Russian warriors, mingled with cannons, wheels, and every object of military warfare, and, indeed, every living thing it contained.” So powerful was the effect which this explosion produced on the _morale_ of the besiegers, which had been somewhat depressed by the misfortunes of the day, that the enthusiasm displayed was almost of a frantic nature. Both the English and French troops, as well as officers, doffed their caps, and threw them high into the air, at the same time giving a shout which might have been heard at Balaklava, a league off. The Russians, however, were nowise daunted, and resumed their fire with undiminished energy. * * * * *