Although Great Britain seems, in this discussion, to have relied almost exclusively on the right derived from actual occupancy and settlement, she cannot reject absolutely those derived from other sources. She must admit that, both in theory and practice, the claims derived from prior discovery, from contiguity, from the principle which gives to the first discoverer of the mouth of a river and of its course a claim to the whole country drained by such river, have all been recognized to a certain, though not well-defined extent, by all the European nations claiming various portions of America. And she cannot deny the facts, that (as Mr. Greenhow justly concludes) the seashore had been generally examined from the 42d, and minutely from the 45th to the 48th degree of latitude, Nootka Sound discovered, and the general direction of the coast from the 48th to the 58th degree of latitude ascertained, by the Spanish expeditions, in the years 1774 and 1775, of Perez, Heceta, and Bodego y Quadra; that the American Captain Gray was the first who, in 1792, entered into and ascertained the existence of the River Columbia, and the place where it empties into the sea; that, prior to that discovery, the Spaniard Heceta was the first who had been within the bay, called Deception Bay by Meares, into which the river does empty; that, of the four navigators who had been in that bay prior to Gray's final discovery, the Spaniard Heceta and the American Gray were the only ones who had asserted that a great river emptied itself into that bay, Heceta having even given a name to the river (St. Roc), and the entrance having been designated by his own name (Ensennada de Heceta), whilst the two English navigators, Meares and Vancouver, had both concluded that no large river had its mouth there; that, in the year 1805, Lewis and Clarke were the first who descended the river Columbia, from one of its principal western sources to its mouth; that the first actual occupancy in that quarter was by Mr. Astor's company, on the 24th of March, 1811, though Mr. Thompson, the astronomer of the British Northwest Company, who arrived at Astoria on the 15th of July, may have wintered on or near some northern source of the river in 52 degrees north latitude; that amongst the factories established by that American company one was situated at the confluence of the Okanagan with the Columbia, in about 49 degrees of latitude; that the 42d degree is the boundary, west of the Stony Mountains, established by treaty between Spain, now Mexico, and the United States; that the 49th degree is likewise the boundary, from the Lake of the Woods to the Stony Mountains, established by treaty between Great Britain and the United States; and that therefore the right of the United States, which may be derived from the principle of contiguity or continuity, embraces the territory west of the Stony Mountains contained between the 42d and 49th degrees of latitude.

Omitting other considerations which apply principally to the territory north of Fuca Straits, where the claims of both parties are almost exclusively derived from their respective discoveries, including those of Spain, it may be rationally inferred from the preceding enumeration that there remain various questions which must be considered by Great Britain as being still doubtful and debatable, and that she may therefore, without any abandonment of positive rights, recede from the extreme pretensions which she has advanced in the discussion respecting a division of the territory. But, although conjectures may be formed, and the course pursued by the Government of the United States may have an influence on that which Great Britain will adopt, it does not belong to me to discuss what that Government may or will do. This paper is intended for the American, and not for the English public; and my attention has been principally directed to those points which may be considered by the United States as doubtful and debatable.

It was expressly stipulated that nothing contained in the conventions of 1818 and 1827 should be construed to impair, or in any manner affect, the claims which either of the contracting parties may have to any part of the country westward of the Stony or Rocky Mountains. After the most cool and impartial investigation of which I am capable, I have not been able to perceive any claim on the part of Great Britain, or debatable question, respecting the territory south of Fuca's Straits, but the species of occupancy by the British Fur companies between the year 1813 and October 20th, 1818; and this must be considered in connection with the restoration of "all territory, places, and possessions whatsoever, taken by either party from the other during the war," provided for by the treaty of Ghent. To this branch of the subject belongs also the question whether the establishment of trading factories with Indians may eventually give a right to sovereignty. My opinion was expressed in the American counter-statement of the case, dated 19th December, 1826: "It is believed that mere factories, established solely for the purpose of trafficking with the natives, and without any view to cultivation and permanent settlement, cannot, of themselves, and unsupported by any other consideration, give any better title to dominion and absolute sovereignty than similar establishments made in a civilized country." However true this may be as an abstract proposition, it must be admitted that, practically, the modest British factory at Calcutta has gradually grown up into absolute and undisputed sovereignty over a population of eighty millions of people.

The questions which, as it appears to me, may be allowed by the United States to be debatable, and therefore to make it questionable whether they have a complete right to the whole Oregon territory, are:

1st. The Nootka convention, which applies to the whole, and which, though not of primary importance, is nevertheless a fact, and the inferences drawn from it a matter of argument.

2dly. The discovery of the Straits of Fuca.

3dly. North of those straits; along the sea shores, the discoveries of the British contrasted with those of the American and Spanish navigators; in the interior, the question whether the discovery of the mouth and the navigation of one of its principal branches, from its source to the mouth of the river, implies without exception a complete right to the whole country drained by all the tributaries of such river; and also the British claim to the whole territory drained by Frazer's river—its sources having been discovered in 1792 by Sir Alexander Mackenzie, factories having been established upon it by the British as early as the year 1806, and the whole river thence to its mouth having been for a number of years exclusively navigated by British subjects.

It appears to me sufficient generally to suggest the controverted points. That which relates to Fuca's Straits is the most important, and deserves particular consideration.

If Fuca's voyage in 1592 could be proved to be an authentic document, this would settle at once the question in favor of the United States; but the voyage was denied in the introduction to the voyage of the Sutil and Mexicano. This was an official document, published under the auspices of the Spanish Government, and intended to vindicate Spain against the charges, that she had contributed nothing to the advancement of geography in those quarters. This negative evidence was confirmed by Humboldt, who says that no trace of such voyage can be found in the archives of Mexico. Unwilling to adduce any doubtful fact, I abstained from alluding to it in the statement of the American case in 1826. Later researches show that, although recorded evidences remain of the voyages of Gali from Macao to Acapulco in 1584, of the Santa Anna (on board of which was, as he says, Fuca himself) from Manilla to the coast of California, where she was captured in 1587 by Cavendish, and of Vizcaino in 1602-1603, and even of Maldonado's fictitious voyage in 1588, yet no trace has been found in Spain or Mexico of Fuca's, or any other similar voyage, in 1692, or thereabout.

On reading with attention the brief account published by Purchas, I will say that the voyage itself has much internal evidence of its truth, but that the inference or conclusion throws much discredit on the whole. The only known account of the voyage is that given verbally at Venice in 1596, by Fuca, a Greek pilot, to Mr. Lock, a respectable English merchant, who transmitted it to Purchas.