While we were stationed here, the great magazine of powder, situated about three miles off, was blown into the air, with such an awful explosion, that the sound thereof reached the distant mountains, and shook, as if by some volcanic agency, the buildings of the town. We were not prepared for the event, which took place at an early hour, and while a few of us were seated around our canteens at breakfast, in one of the convent rooms. Suddenly a violent concussion was felt, and then a thundering noise was heard, that made the ancient fabric reel, and tremble on its base, and rattled the tiles and shingle of the spacious roof about our ears. We were amazed, I may almost say horror-struck, beyond expression, and a number of confused ideas rapidly crossed our minds; some declared it was an earthquake, others, that the enemy's cannon were battering at the walls; no one guessed at the real cause. In a state of consternation, expecting that a second peal would annihilate our tenement, and bury us in its ruins, we made a rush for the doorway, where we met the Adjutant, who explained to us the whole affair; and this turmoil of fire and gunpowder died away in smoke. On the 15th, our brigade marched out of Corunna, and going about two miles from the gates, was drawn up in position upon the extremity of a chain of heights, extending in a semicircular form towards the North. This movement was made in consequence of the decision of Sir John Moore to give the enemy battle; for, the transports not having come round from Vigo, (into which port they had been blown by contrary winds), he determined to make one grand effort, and maintain the honour of the British army. It would thus be seen that, however irregular his troops had been, upon a difficult march, they were well prepared to meet the foe; and that their high character for steadiness, as well as courage, would never fail when called upon in the hour of danger; proving at the same time, that in the cause of England, "every man would do his duty." Sir John Moore himself, almost worn out by constant anxiety, arising from various unforeseen causes, was yet endued with mental force as strong as ever; and, abundant in resources, he never lost that coolness and self-possession which availed him so much. Possessing great humanity, he felt deeply for the dreadful sufferings of his men, and in his exertions to alleviate them he was unremitting. Many times have I seen him go about the lines, from one encampment to another, wrapped up in his military cloak, without parade or ostentation, in order that he might personally inspect the condition of the troops, and as far as in his power lay afford them relief, and add to their comforts.