to scuttle their ships, and commenced by the corvette San Sebastiano, on which Cochrane wrote again to San Martin urging an immediate assault; then perceiving a gap in the boom which surrounded the remaining ships, he on the night of the 24th July, sent eight boats under Captain Crosbie, who cut out from under the batteries the 34-gun corvette Resolution, two smaller vessels and sundry boats, without any loss on his part.
On the 14th August Las Heras made an attempt to capture the fortress by surprise. He had noticed that the gates of the Castle Real Felipe were frequently left open, and the drawbridges lowered. The distance from his line to the walls was about 3,000 yards, which cavalry could cross at a gallop in ten or twelve minutes. A body of horse supported by infantry made a sudden rush from Bella Vista, the centre of his line, but in spite of their speed, the enemy perceived them in time to raise the bridge leading to the inner fortifications. The cavalry galloped through the streets of the town, sabred stragglers and made several prisoners, among the latter being the wounded general Ricafort.
On the same day, Cochrane made overtures to the governor, La Mar, very unworthy of his high renown. He had an idea that silver bullion to the value of thirty millions of dollars was stored up in Callao, besides much other property belonging to the wealthy Spaniards of Lima. He proposed that La Mar should surrender the fortress to him and give him up one-third the treasure, engaging in return to furnish ships in which he, and any he chose to take with him, might escape with the rest of the treasure.
Cochrane states in his Memoirs, that he required the money to pay his crews, and denies that he had any ulterior object, but he himself acknowledges that if he had gained possession of the forts, he would have forced San Martin to keep his promise to leave the Peruvians free to choose their own government.
