There still were no American settlers in the region. The fixing of the boundary was apparently impossible, but Gallatin succeeded in concluding on 6 August, 1827, a convention to continue indefinitely the joint occupancy feature and providing that either side could terminate the agreement by giving the other side twelve months' notice. President Adams felt that it was a compromise, but a good one. Said he to Congress: "Our conventions with Great Britain are founded upon the principles of reciprocity."[227] In the course of the negotiations there was submitted a declaration prohibiting both sides from "exercising, or assuming to themselves the right to exercise, any exclusive sovereignty or jurisdiction over the said territory, during the continuance in force of the present convention."[228] That declaration was not made a formal part of the convention except so far as it is covered by Article III, which provides that nothing in the convention shall impair the claims of either party "to any part of the country westward of the Stony or Rocky Mountains."[229] Oregon was projected into the struggles of joint occupancy. It remains to follow the interest of the three diplomats. Clay could not have forgotten Oregon wholly during his campaigns for the presidency or during his great fight for the Compromise of 1850, including the free constitution of California. He did not, however, come into definite contact with the Oregon case after his term as Secretary of State. Gallatin entered permanently upon private life in 1831. For about eight years he was a banker and then devoted himself to literature. There is abundant evidence that he remembered Oregon. He wrote in the field of ethnology about Indians of the west and, in 1846, when Oregon was reaching toward a final struggle in diplomacy, he wrote his well known pamphlet on The Oregon Question, beginning: "I had been a pioneer in collecting facts and stating the case."[230] When he wrote that pamphlet he was eighty-five years old and within three years of his death.