Report of the Secretary of War.--Proclamation of Gov. Brigham Young declaring Martial Law.--Correspondence.--Sermons of Young and Kimball.--Proclamation of Gov. Cumming.--His Echo Canyon Adventures.--Col. Kane.--The Mormons leave Salt Lake.-- Commissioners appointed by the President.--Peace restored. By these and similar outrages the Mormons had succeeded in ridding themselves of all the federal authorities, and were really in open rebellion against the Federal Government. As Congress was not in session, the matter was taken in hand by Floyd, Secretary of War, and President Buchanan. After due consultation it was deemed advisable to appoint new men to all the civil offices of the Territory, and to accompany them with a military force sufficient for their protection and the enforcement of the laws. Accordingly, President Buchanan, during the summer of 1857, made the following appointments for Utah:--Governor, A. Cumming; Chief Justice, D. R. Eckels; Associate Justices, John Cradlebaugh and Charles E. Sinclair; Secretary, John Hartnett. An army of about 3000 men was armed and equipped, and ordered to march for Utah, early in the fall of 1857. Brevet Brigadier-General W. S. Harney was originally named as commander of this force, but it was subsequently deemed inadvisable to detach that officer from the special duties of his department in Kansas, and the troops sent to Utah were placed under the orders of Col. A. S. Johnson. The Secretary of War, in his report, dated December 5, 1857, says:-- "The Territory of Utah is peopled almost exclusively by the religious sect known as Mormons. . . . They have substituted for the laws of the land a theocracy, having for its head an individual whom they profess to believe a prophet of God. "This Prophet demands obedience, and receives it implicitly from his people, in virtue of what he assures them to be authority derived from revelations received by him from Heaven. Whenever he finds it convenient to exercise any special command, these opportune revelations of a higher law come to his aid. From his decrees there is no appeal; against his will there is no resistance. . . . "From the first hour they fixed themselves in that remote and almost inaccessible region of our territory, from which they are now sending defiance to the sovereign power, their whole plan has been to prepare for a successful secession from the authority of the United States, and a permanent establishment of their own. . . .