Captain, afterwards Colonel Moncrieffe, of the Engineers, exhibited symptoms of the highest talents in his profession; and a share of honour truly falls to the lot of Captain Charlton, of the Corps of Royal Artillery, which has been eminently and uniformly great upon every service allotted them. Lieut. Colonel Glazier, who led the Grenadiers and Marines in the charge which decided the fate of every thing, attracted much praise. Soon after the raising of the siege, Lieut. Colonel Maitland fell a sacrifice to his fatigues, which, producing a bilious fever, deprived his Country of a faithful servant, and the Soldier of a true friend. Sir George Collier was most usefully active during the period of his command in North America. He undertook nothing in which he did not succeed, and in every instance of service exhibited a prompt and decisive mind. The enemy's Commerce and Naval Power suffered much by his spirited measures, in which I cannot follow him. In the month of June, Spain, after having received her treasures in safety, entered the lists against Great Britain, whose situation now seemed desperate to all the surrounding Powers. But the hour of danger is the only occasion in which the native spirit of Englishmen can best be known or appreciated. It called forth that union which should ever constitute the pride, as it can alone secure the independence of a nation. Notwithstanding the immense superiority gained by this accession, still the vigour of our combined enemies was by no means in an adequate proportion. Their fleets soon after appeared on our coasts, in numbers we were unable to oppose; but their exertions against them were at first repressed by discord, and finally averted by disease. The only service upon which the Corps of Marines was employed during the remainder of the present year, was in the capture of Omoa, effected by parties from the Charon, Lowestoff, and Pomona frigates, in conjunction with the Seamen of these ships, who were trained to small arms, and a number of baymen and logwood cutters that were embodied at Truxillo. Commodore Luttrell conducted the naval part of the expedition, and Captain Dalrymple the land force. Disembarking at Porto Cavallo, they sustained great fatigue in a night's march toward the fort, with a view to surprize it, on the 16th of October. Such were their obstacles from morasses filled by the rains, and intervening precipices, that they found themselves nearly six miles distant in the morning, and that they were discovered by the enemy. After giving the men a little respite, Captain Dalrymple pushed on, drove the Spaniards from an ambuscade, secured and established posts on the heights round the town and fort, and having been incommoded by musquetry from the place, he set it in flames, at which time Commodore Luttrell entered the harbour and completed the blockade by sea.