At the beginning of this century, the French government planned a voyage of discovery, the chief object of which was to explore the seas of Australasia. Those parts of New Holland which were entirely unknown, or but imperfectly ascertained, were to be examined; the coast of New Guinea to be surveyed, principally in the search of a strait which was supposed to divide it into two parts; a passage by Endeavour Straits to the eastern point of the Gulf of Carpentaria was to be attempted; and then the expedition was to sail to Cape Northwest. Besides these objects in Australasia, the Indian Ocean was to be navigated.

Two vessels, the Geographe and Naturaliste, sailed on this expedition in October, 1800; but they did not by their discoveries add much that was important to the geography of Australasia. They indeed have made known to future navigators, reefs and shoals on the coast of New Holland; have fixed more accurately, or for the first time, some latitudes and longitudes belonging to this and other parts of Australasia, and have traced some small rivers in New Holland. They also confirmed the accuracy and justice of preceding observations in several points; particularly relative to the singular fineness of the weather, and serenity of the heavens in these seas.

Their greatest discovery undoubtedly consisted in a great archipelago, which they named after Bonaparte: the islands that composed it were in general small; some volcanic or basaltic; others sandy. After examining these, they were obliged to return to Timor, in consequence of the sickness of their crews. After they were recovered, they returned to the grand object of their expedition, which, though interesting and important to the navigator, or to the minute researches of the geographer, presents nothing that requires to be noticed in this place.

Such is the sum of the additions to our geographical knowledge of Australasia which has resulted from the voyages of discovery during the last one hundred years. The great outline, and most of the subordinate parts, are filled up; and little remains to be discovered or ascertained which can greatly alter our maps, as they are at present drawn. Additions, however, will gradually be made; errors will be corrected; a stronger and clearer light will be thrown on obscure points. Much of this will be done by the accidental discoveries and observations of the many ships which are constantly sailing from England to New Holland; or which trade from the latter country to New Zealand or other parts of Australasia, to India, or to China. By means of these voyages, additions have already been made to our knowledge, especially of New Zealand; and its inhabitants are beginning to feel and acknowledge the benefits which must always be derived from the intercourse of civilized people with savages.

Polynesia, extending from the Pelew Isles on the west, to the Isle of All Saints on the north-east, and the Sandwich Isles in the east, and having for its other boundaries the latitude of 20° north, and of 50° south, near the latter of which it joins Australasia, is the only remaining division of the globe which remains to come under our cognizance, as having been explored by maritime expeditions; and as it consists entirely of groups of small islands, we shall not be detained long in tracing the discoveries which have been made in these seas.

The Pelew Islands, one of the divisions of Polynesia, though they probably had been seen, and perhaps visited by Europeans before 1783, were certainly first made completely known to them at this period, in consequence of the shipwreck of Captain Wilson on them. The Sandwich Isles, the next group, have been discovered within the last century by Captain Cook, on his last voyage. The Marquesas, discovered by Mandana, were visited by Captain Cook in 1774, by the French in 1789, and particularly and carefully examined during the missionary voyage of Captain Wilson in 1797. Captain Wallis, who sailed with Captain Carteret in 1766, but was afterwards separated from him in his course across the South Pacific, discovered several islands, particularly Otaheite; to this and the neighbouring islands the name of Society Isles was given. Such are the most important discoveries that have been made in Polynesia during the last century; but besides these, other discoveries of less importance have been made, either by navigators who have sailed expressly for the purpose, as Kotzebue, &c., or by accident, while crossing this immense ocean. In consequence of the advances which the Sandwich Islands have made in civilization, commerce, and the arts, there is considerable intercourse with them, especially by the Americans; and their voyages to them, and from thence to China, whither they carry the sandal wood, &c. which they obtain there, as well as their voyages from the north-west coast of America with furs to China, must soon detect any isles that may still be unknown in this part of the Pacific Ocean.

Although, therefore, much remains yet to be accomplished by maritime expeditions, towards the extension and correction of our geographical knowledge, so far as the bearings of the coast, and the latitudes and longitudes of various places are concerned, there seems no room for what may properly and strictly be called discovery, at least of any thing but small and scattered islands.

It is otherwise with the accessions which land expeditions may still make to geographical knowledge; for though within these one hundred years the European foot has trodden where it never trod before, and though our geographical knowledge of the interior of Africa, Asia, and America, has been, rendered within that period not only more extensive, but also more accurate and minute than it previously was, yet much remains to be done and known.

In giving a short and rapid sketch of the progress of discovery, so far as it has been accomplished by land expeditions during the period alluded to, we are naturally led to divide what we have to say according to the three great portions of the globe which have been the objects of these expeditions, viz. Africa, Asia, and America.

1. Africa. This country has always presented most formidable obstacles to the progress of discovery: its immense and trackless deserts, its burning and fatal climate, its barbarous and treacherous inhabitants, have united to keep a very large portion of it from the intercourse, and even the approach of European travellers. Even its northern parts, which are most accessible to Europe, and which for 2000 years have been occasionally visited by Europeans, are guarded by the cruel jealousy of its inhabitants; or, if that is overcome, advances to any very great distance from the coast are effectively impeded by natives still more savage, or by waterless and foodless deserts.