of it, varying only in minute details from the Admiralty chart. A native of Tahiti, named Tupaia, drew out for Cook a map of the Pacific, extending over forty-five degrees of longitude (nearly 3000 miles), giving the relative size and position of the main islands over that huge tract of ocean. Almost all geographical discoveries by Europeans have, in like manner, been brought about by means of guides, who necessarily knew the country which their European masters wished to "discover."
What, therefore, we mean by the history of geographical discovery is the gradual bringing to the knowledge of the nations of civilisation surrounding the Mediterranean Sea the vast tracts of land extending in all directions from it. There are mainly two divisions of this history—the discovery of the Old World and that of the New, including Australia under the latter term. Though we speak of geographical discovery, it is really the discovery of new tribes of men that we are thinking of. It is only quite recently that men have sought for knowledge about lands, apart from the men who inhabit them. One might almost say that the history of geographical discovery, properly so called, begins with Captain Cook, the motive of whose voyages was purely scientific curiosity. But before his time men wanted to know one another for two chief reasons: they wanted to conquer, or they wanted to trade; or perhaps we could reduce the motives to one—they wanted to conquer, because they wanted to trade. In our own day we have seen a remarkable mixture of all three motives, resulting in the European partition of Africa—perhaps the
