In this way had San Diego, San Pedro, Los Angelos, Santa Barbara, and the whole country, as the Mexican authorities declared, come into the possession of Commodore Stockton and General Fremont, as a conquered territory, taken in behalf of the United States; and the whole work been completed in about sixty days from the time the first blow was struck; and when all was accomplished, and the conquest complete, Carson started upon his errand to communicate the intelligence to the general government at Washington; with the knowledge that all the leading citizens of California, native as well as the American settlers, were friendly to Fremont, and on his account to Commodore Stockton. During the three months of Carson's absence, events had transpired that made it necessary to do this work over again, resulting in a measure from the indiscretions of American officers, which induced insurrection on the part of the Mexicans. The arrival of General Kearney with United States troops still further excited them, and produced results which were everything but pleasant to Fremont and Commodore Stockton, the details of which we forbear to give, simply saying that Carson's regard for Fremont showed itself by his return to his service, and doing all that he could to forward his interests, and in his often attending him in his excursions. Fremont's command was an independent battalion; and concerning the last and final contest, General Kearney thus wrote to the War Department: "This morning, Lieutenant-Colonel Fremont, of the regiment of mounted riflemen, reached here with four hundred volunteers from the Sacramento; the enemy capitulated with him yesterday, near San Fernando, agreeing to lay down their arms; and we have now the prospect of having peace and quietness in this country, which I hope may not be interrupted again." It was during Carson's absence, en route for Washington, that Fremont accomplished the most extraordinary feat of physical energy and endurance ever recorded. We find it in the "National Intelligencer," of November 22, 1847, and quote it entire, as illustrating not only the physical powers of human endurance produced by practice and culture, but the wonderful sagacity and enduring qualities of the California horses: "THE EXTRAORDINARY RIDE OF LIEUT. COL. FREMONT, HIS FRIEND DON JESUS PICO, AND HIS SERVANT, JACOB DODSON, FROM LOS ANGELOS TO MONTEREY AND BACK IN MARCH, 1847.