[Footnote 3: Among the vessels which at various times have professed to meet with the Auroras may be mentioned the ship San Miguel, in 1769; the ship Aurora, in 1774; the brig Pearl, in 1779; and the ship Dolores, in 1790. They all agree in giving the mean latitude fifty-three degrees south.] We kept on our course, between the south and west, with variable weather, until the twentieth of the month, when we found ourselves on the debated ground, being in latitude 53° 15' S., longitude 47° 58' W.--that is to say, very nearly upon the spot indicated as the situation of the most southern of the group. Not perceiving any sign of land, we continued to the westward in the parallel of fifty-three degrees south, as far as the meridian of fifty degrees west. We then stood to the north as far as the parallel of fifty-two degrees south, when we turned to the eastward, and kept our parallel by double altitudes, morning and evening, and meridian altitudes of the planets and moon. Having thus gone eastwardly to the meridian of the western coast of Georgia, we kept that meridian until we were in the latitude from which we set out. We then took diagonal courses throughout the entire extent of sea circumscribed, keeping a lookout constantly at the masthead, and repeating our examination with the greatest care for a period of three weeks, during which the weather was remarkably pleasant and fair, with no haze whatsoever. Of course we were thoroughly satisfied that, whatever islands might have existed in this vicinity at any former period, no vestige of them remained at the present day. Since my return home I find that the same ground was traced over with equal care in 1822 by Captain Johnson, of the American schooner Henry, and by Captain Morrell, in the American schooner Wasp--in both cases with the same result as in our own. CHAPTER XVI.