Incensed at the open and continued violations of neutrality by the Spanish Governor, who had permitted Pensacola to be made a recruiting camp for the arming and drilling of their Indian allies by the British, General Jackson determined to march his army against this seat of government, and to enforce the observance of neutrality on the part of the Spanish commandant at the point of the bayonet if need be. He had removed his headquarters to Fort Montgomery, where by the first of November his command consisted of one thousand regular troops and two thousand militia, mainly from Tennessee and Mississippi--in all, about three thousand men. With these he set out for Pensacola, and on the evening of the sixth of November encamped within two miles of the town. He sent in Major Peire, bearing a flag of truce to the Governor, with a message that Pensacola must no longer be a refuge and camp for the enemies of the United States, and that the town must be surrendered, together with the forts. The messenger was fired on and driven back from Fort St. Michael, over which the British flag had been floating jointly with the flag of Spain. The firing was done by British troops harbored within. Governor Maurequez disavowed knowledge of the outrage, but refused to surrender his authority. The next morning the intrepid Jackson entered the town and carried by storm its defenses, the British retreating to their ships and putting off to sea. Fort Barrancas was blown up by the enemy, to prevent the Americans from turning its guns upon the escaping British vessels. The Spanish commandant made profuse apologies, and pledged that he would in future observe a strict neutrality. Jackson, fearing another attempt to capture Mobile by the retiring fleet, withdrew from Pensacola and marched for the former place, arriving there on the eleventh of November. At Mobile, messengers from those in highest authority at New Orleans met him, urging that he hasten there with his army and at once begin measures for the defense of that city. Information had been received by W.C. Claiborne, then Governor of Louisiana, from a highly credited source--most unexpected, but most fortunate and welcome--that the vast British armament of ships and men rendezvousing in the West Indies was about ready to sail, and that New Orleans was assuredly the objective point of the expedition. LAFITTE, THE PIRATE OF THE GULF, AND HIS SEA-ROVERS, LOYAL TO THE AMERICAN CAUSE. The informant was the celebrated Captain Jean Lafitte, the leader of the reputed pirates of the Gulf, who had been outlawed by an edict of our Government. The circumstances were so romantic, and displayed such a patriotic love for and loyalty to our country, that they are worthy of brief mention. As Byron wrote, he Left a corsair's name to other times, Linked with one virtue and a thousand crimes.