THE PATHFINDER. The discovery and exploration of the trans-Mississippi region had many phases, the outcome of different conditions and varying individual efforts to determine the extent, possibilities, and resources of the undeveloped half of the American continent. The seamanship of Gray, the enthusiasm of Lewis, the courage of Clarke, the assiduity of Pike, the enterprise of Ashley, Wyeth, Sublette, Bonneville, and other trappers and traders, had done much to make known to the pioneer and settler the advantages and promise of the great West, and had roughly delineated the routes of travel best suited for the emigrant in his westward march. In time many urged that the government of the United States, so long shamefully negligent of its magnificent acquisitions by purchase, discovery, and settlement, should enter in and possess its own. This, however, necessitated, first, a systematic examination of the physical features of the West to such an extent as to render possible its general and authoritative description; second, the granting of lands or homesteads to such of its daring citizens as might be willing to venture their lives as settlers in these remote regions. Among public men who urged most strongly such action was one of the most distinguished of our Western statesmen, Thomas H. Benton, first Senator from the new and growing State of Missouri. He persistently advocated the settlement of the lower Columbia by Americans, the enforcement of the title of the United States to the Pacific Coast region from California northward to the forty-ninth parallel, and in 1825 he presented in the Senate a bill authorizing the use of the army and navy to protect American interests in Oregon. In season and out of season Benton opposed the joint occupation of Oregon by England and America, unfailingly supporting every measure which promised to fill its fertile valleys with American settlers. So dominant was this idea in Benton's career that artistic skill has fittingly shaped his statue in St. Louis with its bronze hand pointing _west_, with his prophetic words carved on the pedestal, "There is the _east_. There is India." In his efforts to put his ideas into practical shape, Benton threw the great weight of his influence as a Senator toward the employment in such explorations of a member of his family by marriage, John Charles Frémont, whose ability and inclinations specially suited him for the scientific examination and exploration of the trans-Mississippi region. [Illustration: John Charles Frémont.]