Here they spiked up all the guns, destroyed the platforms, and completely effected this important object with but little loss. The enemy, well knowing the value of this position, soon mounted two heavy cannon, which were again silenced by a ship ordered for that purpose. A third opportunity--and the same scene of action afforded a display of Naval courage, when six other guns were once more destroyed, with every appendage to them. These repeated efforts much aided the operations of the Army now employed in the reduction of the Castle of Bocca Chica. Upon the 25th of March, a practicable breach having been made in it, the general communicated his determination to storm it. Accordingly Admiral Vernon assembled all the boats, in order to co-operate, having landed their men within view of the enemy, where the fascine battery was fixed. This was a well-judged diversion; for when the grenadiers advanced to storm, at the hour appointed, they met no resistance, as the Spaniards fled without firing a shot. A panic had now seized the enemy, who set fire to one of their ships. Taking advantage of this state, the boats resolved to attempt the fort of St. Joseph, which was immediately evacuated. Being now within the boom thrown across the harbour, and the Dons, seeming determined to sink their ships, they judged it proper to row on, and soon boarded the Galicia, carrying the flag of the Spanish Admiral.--These obstructions being removed, the Admiral and the squadron, still with much difficulty, moved into the harbour. After various services, the Castle of Grande Castillo having been gained, and the enemy sunk all their men of war, farther preparations were made for landing the troops nearer the town, in order to cut off all communication with the main land. Our loss, up to the beginning of April, was two Colonels of Foot, one of Marines, with one Captain of the Royal Navy, besides other Officers slain, and upwards of four hundred of different descriptions killed and wounded. That mortality, which is the never-failing result of protracted operations in this inhospitable clime, now began its ravages. Matters were pushed on--the bomb-ketches on the 2d of April began to play upon the town, and the other passages of approach cleared from the ships sunk by the enemy, as being necessary for the disembarkation of the forces near the city. After these difficulties were removed, they were landed at the dawn of the 5th, under the command of General Wentworth, who, after a spirited contest, established his encampment within a mile of the fort of St. Lazar.--Things now drawing to extremities, it became necessary to forego the ceremonies of a regular siege, and, however hazardous, to rest the issue upon a storm.