According to accurate astronomical observations, the middle of this group lies under 11° 19' 21" latitude, and 192° 25' 3" longitude. In comparing the situation of the Pescadores, as given by Captain Wallis, their discoverer, with this observation, it is scarcely possible to believe in the identity of the groups. I have, however, left them the name of Pescadores, because the two observations nearly correspond. After having sailed round the whole group, we came, at four o'clock in the afternoon, so close to their north-western point, that every movement on land might have been distinctly seen with the naked eye; yet even here there was nothing to indicate the presence of man, though Wallis communicated with the inhabitants, if, indeed, these islands be really the Pescadores. If so, these people must have become extinct long ago, as no monument of their former existence is now visible. When we had completed our survey, we again proceeded westward, and, within half an hour, the watch again announced land in sight. The evening was now so far advanced, that we determined to lay-to, in order to avoid the danger of too near an approach to the coral reefs during the night, and deferred our survey till the following morning. At break of day we saw the islands which we have called the Pescadores, lying six miles to the eastward; whilst those which had risen on our horizon the preceding evening had wholly disappeared. We had diverged from them in the night; but, with a brisk trade-wind, we regained the sight of them in an hour. At eight o'clock in the morning we came within three miles of the nearest island, and running parallel with the land, began our examination. It was another group of coral islands connected by reefs round a basin. Here also vegetation was luxuriant, and the cocoa-trees rose to a towering height, but not a trace of man could be discerned; and we therefore concluded they were uninhabited, as we were near enough to distinguish any object with the naked eye. Favoured by a fresh breeze, we sailed westward along the islands, till nightfall, without reaching the end of this long group. During the night we had much difficulty in keeping our position, owing to a tolerably smart gale, which, in these unknown waters, would have been attended by no inconsiderable danger, but that the land lay to windward of us; and were therefore well pleased in the morning to find that the different landmarks by which we had been guided overnight, were still visible, so that we were enabled to pursue our observations without interruption.
The greatest length of this group, which I named, after our second lieutenant, Rimski-Korsakoff, is from east-north-east to west-south-west, in which direction it is, fifty-four miles long. Its greatest breadth is ten miles. As we were sailing along the islands to windward of us, we could plainly distinguish from the mast-head those which lay at the other side of the basin.
After having terminated our observations, we pursued a southerly course, in hopes of discovering more land, and sailed at a great rate during the whole of the day, without seeing any thing. At night we lay-to; but the following morning, the 9th of October, we had scarcely spread our sails, before the man at the mast-head discovered some low islands to the north, which we had already past, and which now lay to windward of us. I immediately changed our course, and endeavoured to approach them by dint of tacking, but a strong easterly current, which increased as we drew nearer to the land, almost baffled our efforts. We succeeded with much difficulty in getting within eleven miles and a half of the western extremity of the group, distinguished by a small round hill, which at noon lay due east, our latitude by observation being 11° 30' 32", and our longitude 194° 34'. From this point we could see the group, stretching to the verge of the horizon, in a south-easterly and north-easterly direction. We again attempted to approach them nearer; but not succeeding, we were obliged to continue our course to the westward, contenting ourselves with determining the position of the western extremity, 11° 40' 11" latitude, and 194° 37' 35" longitude, from which point they must stretch considerably to the east. These, like other coral islands, probably lie round a basin: of population we could see no trace, though there was every appearance of their being habitable. I named them, after our worthy Doctor and Professor, Eschscholtz, who was now making the second voyage with me.
It is unnecessary to add any thing here respecting the situations of these three groups of isles, which have been laid down, with the greatest possible accuracy, in the chart accompanying this volume; one thing only I beg to observe, that they bear not the slightest resemblance to the Pescadores described by Wallis. He did not possess the facilities for ascertaining the longitude, which have been invented since his time. His Pescadores may be situated elsewhere; but even if one of these groups should be the Pescadores, we may justly claim the discovery of the other two. This discovery is of some value, inasmuch as these groups are no doubt the northern extremity of the Ralik chain; and their position and distance from Radak being now ascertained, there will hereafter be little difficulty in discovering the remaining groups of the chain.
From the Eschscholtz Isles we steered for the Bronus Isles, it being my wish to try the accuracy of their geographical position, and to ascertain whether the interval between the two groups was wholly free of islands. On the 11th of October, at noon, being in latitude 11° 21' 39", and longitude 196° 35', the Bronus Isles were descried from the mast-head, at a distance of twenty miles. We approached within a mile and a half of the southern extremity of the group, from which point we were able to survey the whole, which we found, like other coral groups, to consist of a circle of islands connected by a reef. The Bronus Isles, however, appeared of more ancient formation than any we had yet seen; the land was somewhat more elevated, and the trees were larger and stronger. Here also we saw no appearance of inhabitants.
A calm which suddenly set in exposed us to the danger of being driven by a powerful current upon the reef; but when we were already very near the breakers, the direction of the current varied, running southward parallel with the coast. By this means we were enabled to double the southern extremity of the group, and a gentle breeze soon after springing up, conveyed us to a safe distance from the land. According to our observation, this southern extremity lies in latitude 11° 20' 50", and longitude 197° 28' 30". It was my intention to have noted the position of the whole group, for which purpose I endeavoured during the night to keep the ship in its vicinity; but at daybreak the current had carried us so far to leeward, that land could scarcely be perceived from the mast-head. As it was utterly impossible to make any way against the united force of the current and trade-wind, I was obliged to abandon my design, upon which we steered for the Ladrones, or Mariana Isles, where I intended to take in fresh provisions.
It is a striking phenomenon, and one not easily accounted for, that in 11° north latitude, from the Radak chain to the Bronus Isles, there should be a current of a mile and a half per hour.