from his cigar, whilst he meditated, as presently appeared, a frightful plan of vengeance. Stimulated by curiosity, a number of Mexicans now strolled over to our camp, and gazed shyly at the gloomy grey marksmen, as if they still feared them, even though unarmed. The beauty of the rifles which our people had given up, was also a subject of great wonder and admiration; and soon the camp became crowded with unwelcome visitors--their joy and astonishment at their triumph, contrasting with the despair and despondency of the prisoners. Suddenly a broad bright flame flashed though the morning fog, a tremendous explosion followed, and then all was again still, and the prairie strewn with wounded men. A cloud of smoke was crushed down by the heavy atmosphere upon the dark green plain; the horses of the Mexican officers reared wildly in the air, or, with bristling mane and streaming tail, galloped furiously away with their half-deafened riders. Numbers of persons had been thrown down by the shock, others had flung themselves upon the ground in consternation, and some moments elapsed before the cause of the explosion was ascertained. The powder magazine had disappeared--all but a small part of the carriage, around which lay a number of wounded, and, at about fifteen paces from it, a black object, in which the form of a human being was scarcely recognisable, but which was still living, although unable to speak. Coal-black as a negro, and frightfully disfigured, it was impossible to distinguish the features of this unhappy wretch. Inquiry was made, the roll was called, and Johnson was found missing. Nobody had observed his proceedings, and the explosion may have been the result of an accident; but we entertained little doubt that he had formed a deliberate plan to kill himself and as many Mexicans as he could, and had chosen what he considered a favourable moment to set fire to the ammunition-waggon. As it happened, the cover was not fastened down, so that the principal force of the powder went upwards, and his terrible project was rendered in a great measure abortive. Scarcely had the confusion caused by this incident subsided, and the fury of our foes been appeased, when the alarm was sounded in the opposite camp, and the Mexicans ran to their arms. The cause of this was soon explained. In the wood, which, could we have reached it, would have been our salvation, appeared our faithful vanguard, accompanied by all the militia they had been able to collect in so short a time--the whole commanded by Colonel Horton. False indeed had been the report, that six or eight hundred men were stationed at Victoria; including our vanguard, the gallant fellows who thus came to our assistance were but sixty in number.