The details of this object will be immediately communicated to the State authorities through the War Department. I appeal to all loyal citizens to favor, facilitate, and aid this effort to maintain the honor, the integrity and existence of our National Union, and the perpetuity of popular government, and to redress wrongs already long enough endured. I deem it proper to say that the first service assigned to the forces hereby called forth will probably be to repossess the forts, places, and property which have been seized from the Union; and in every event the utmost care will be observed, consistently with the objects aforesaid, to avoid any devastation, any destruction of, or interference with, property, or any disturbance of peaceful citizens of any part of the country; and I hereby command the persons composing the combinations aforesaid to disperse and retire peaceably to their respective abodes, within twenty days from this date. Deeming that the present condition of public affairs presents an extraordinary occasion, I do hereby, in virtue of the power in me vested by the Constitution, convene both Houses of Congress. The Senators and Representatives are, therefore, summoned to assemble at their respective chambers, at twelve o'clock, noon, on Thursday, the fourth day of July next, then and there to consider and determine such measures as, in their wisdom, the public safety and interest may seem to demand. In witness whereof I have hereunto set my hand and caused the seal of the United States to be affixed. Done at the City of Washington, this fifteenth day of April, in the year of our Lord one thousand eight hundred and sixty-one, and of the independence of the United States the eighty-fifth. _By the President_, ABRAHAM LINCOLN. WILLIAM H. SEWARD, Secretary of State. The issue of this proclamation created the wildest enthusiasm throughout the North. Scarcely a voice was raised against it, as it was seen to be a measure of absolute necessity and of self-defense on the part of the Government. "Every Northern State," says Mr. Henry I. Raymond, "responded promptly to the President's demand, and from private persons, as well as by the Legislatures, men, arms, and money were offered in unstinted profusion, and with the most zealous alacrity, in support of the Government. Massachusetts was first in the field, and on the first day after the issue of the proclamation her Sixth regiment, completely equipped, started from Boston for the national capital. Two more regiments were also made ready, and took their departure within forty-eight hours."