But the most alarming circumstance, and which, without the providential interposition of very improbable events, would have rendered all their schemes abortive, remains yet to be related. The general idea of the fabric and equipment of the vessel was settled in a few days; and this being done, it was not difficult to frame some estimation of the time necessary to compleat her. After this, it was natural to expect that the officers would consider the course they were to steer, and the land they were to make. These reflections led them to the disheartning discovery that there was neither compass nor quadrant on the island. Indeed the commodore had brought a pocket-compass on shore for his own use, but Lieutenant Brett had borrowed it to determine the position of the neighbouring islands, and he had been driven to sea in the _Centurion_ without returning it. And as to a quadrant, that could not be expected to be found on shore, since as it was of no use at land, there could be no reason for bringing it from on board the ship. There were now eight days elapsed since the departure of the _Centurion_, and yet they were not in any degree relieved from this terrible perplexity. At last, in rumaging a chest belonging to the Spanish bark, they discovered a small compass, which, though little better than the toys usually made for the amusement of schoolboys, was to them an invaluable treasure. And a few days after, by a similar piece of good fortune, they met with a quadrant on the sea-shore, which had been thrown overboard amongst other lumber belonging to the dead. The quadrant was eagerly seized, but on examination it unluckily wanted vanes, and therefore in this present state was altogether useless; { 301} however, fortune still continuing in a favourable mood, it was not long before a person, through curiosity pulling out the drawer of an old table which had been driven on shore, found therein some vanes which fitted the quadrant very well; and it being thus compleated, it was examined by the known latitude of the place, and upon trial answered to a sufficient degree of exactness.