The reinforcements and supply-trains for the army were at this time concentrating at Fort Leavenworth, Major-General Persifer F. Smith was assigned to the command-in-chief, and it was intended that the whole force, after concentration in Utah, should be divided into two brigades, one to be commanded by General Harney, the other by General Johnston. Leaving the columns preparing to advance over the Plains, the Commissioners started from the Fort on the 25th of April. On the same day, Lieutenant-Colonel Hoffmann advanced from Fort Laramie with several companies of infantry and cavalry, escorting the supply-trains which were parked there through the winter, and on the speedy arrival of which at Camp Scott the subsistence of General Johnston's command depended, unless it should force its way into the Valley. On the 1st of May, he had reached La Bonté, a tributary of the North Platte, fifty miles from the Fort. There he encountered the severest storm that had occurred in that region for many years. The snow fell breast-deep, and was followed by a pelting rain which killed his mules by scores. He was forced to remain stationary more than a week, and when he renewed the march the trains were clogged by mud foot-deep. The Commissioners reached Camp Scott on the 29th of May. The President's Proclamation had been received the day before. With the exception of a few persons who were prepared for such a document by reflection on Mr. Kane's mission, everybody was astonished at its purport. It seemed incredible that a lenity should have been extended to the Mormon rebels which was refused to the Free-State men in Kansas, who were once indicted for treason and sedition,--and equally incredible that all the advantages for the solution of the Utah problem which had been gained by the rising of the Mormons in arms should be thrown away. There was none of the bloodthirsty excitement in the camp which was reported in the States to have prevailed there, but there was a feeling of infinite chagrin, a consciousness that the expedition was only a pawn on Mr. Buchanan's political chess-board; and reproaches against his folly were as frequent as they were vehement. Had he excepted from the amnesty the Mormon leaders, who alone had been indicted, the Proclamation might have been considered an act of judicious clemency; for that exception would have accomplished every object that could be desired. As it was, it annihilated all that had been gained by the enormous expenditures and the toils and sufferings of the past year, and it sentenced the army to an indefinite term of imprisonment in an American Siberia. For the sake of ridding the Administration of immediate trouble, it turned the Church leaders loose again upon the community, purged of all offence, and postponed to a future day a terrible issue, the ultimate avoidance of which is impossible. "After us the deluge," was still the motto of the President and his Cabinet.