But the most prudent dispositions carry with them only a probability of success, and can never ensure its certainty, since those chances which it was reasonable to overlook in deliberation are sometimes of most powerful influence in execution. Thus in the present case, the distress of the _Tryal_, and our quitting our station to assist her (events which no degree of prudence could either foresee or obviate), gave an opportunity to all the ships bound to Valparaiso to reach that port without molestation during this unlucky interval. So that though, after leaving Captain Saunders, we were very expeditious in regaining our station, where we got the 29th at noon, yet in plying on and off till the 6th of October we had not the good fortune to discover a sail of any sort: and then having lost all hopes of meeting with better fortune by a longer stay, we made sail to the leeward of the port, in order to join our prizes; but when we arrived off the highland where they were directed to cruise, we did not find them, though we continued there four or five days. We supposed that some chace had occasioned their leaving their station, and therefore we proceeded down the coast to the highland of Nasca, which was the second rendezvous, where Captain Saunders was directed to join us. Here we got on the 21st, and were in great expectation of falling in with some of the enemy's vessels, as both the accounts of former voyages and the information of our prisoners assured us that all ships bound to Callao constantly make this land, to prevent the danger of running to the leeward of the port. But notwithstanding the advantages of this station, we saw no sail till the 2d of November, when two ships appeared in sight {165} together; we immediately gave them chace, and soon perceived that they were the _Tryal's_ and _Centurion's_ prizes. As they had the wind of us, we brought to and waited their coming up, when Captain Saunders came on board us, and acquainted the commodore that he had cleared the _Tryal_ pursuant to his orders, and having scuttled her, he remained by her till she sunk, but that it was the 4th of October before this was effected; for there ran so large and hollow a sea, that the sloop, having neither masts nor sails to steady her, rolled and pitched so violently, that it was impossible for a boat to lay alongside of her for the greatest part of the time: and during this attendance on the sloop, they were all driven so far to the north-west that they were afterwards obliged to stretch a long way to the westward to regain the ground they had lost; which was the reason that we had not met with them on their station, as we expected. We found they had not been more fortunate in their cruise than we were, for they had seen no vessel since they separated from us. The little success we all had, and our certainty that had any ships been stirring in these seas for some time past we must have met with them, made us believe that the enemy at