Having been convened on an extraordinary occasion, as authorized by the Constitution, your attention is not called to any ordinary subject of legislation.

At the beginning of the present Presidential term, four months ago, the functions of the Federal Government were found to be generally suspended within the several States of South Carolina, Georgia, Alabama, Mississippi, Louisiana, and Florida, excepting only those of the Post-Office Department.

Within these States all the forts, arsenals, dock-yards, custom-houses, and the like, including the movable and stationery property in and about them, had been seized, and were held in open hostility to this Government, excepting only Forts Pickens, Taylor, and Jefferson, on and near the Florida coast, and Fort Sumter, in Charleston Harbor, S.C. The forts thus seized had been put in improved condition; new ones had been built, and armed forces had been organized, and were organizing, all avowedly with the same hostile purpose.

The forts remaining in the possession of the Federal Government in and near these States were either besieged or menaced by warlike preparations, and especially Fort Sumter was nearly surrounded by well-protected hostile batteries, with guns equal in quality to the best of its own and outnumbering the latter as perhaps ten to one. A disproportionate share of the Federal muskets and rifles had somehow found their way into these States and had been seized to be used against the Government. Accumulations of the public revenue lying within them had been seized for the same object. The Navy was scattered in distant seas, leaving but a very small part of it within the immediate reach of the Government. Officers of the Federal Army and Navy had resigned in great numbers, and of those resigning a large proportion had taken up arms against the Government. Simultaneously, and in connection with all this, the purpose the sever the Federal Union was openly avowed. In accordance with this purpose an ordinance had been adopted in each of these States declaring the States, respectively, to be separated from the National Union. A formula for instituting a combined government of these States had been promulgated, and this illegal organization, in the character of Confederate States, was already invoking recognition, aid, and intervention from foreign powers.

Finding this condition of things and believing it to be an imperative duty upon the incoming Executive to prevent, if possible, the consummation of such an attempt to destroy the Federal Union, a choice of means to that end became indispensable. This choice was made and was declared in the inaugural address. The policy chosen looked to the exhaustion of all peaceful measures before a resort to any stronger ones. It sought only to hold the public places and property not already wrested from the Government and to collect the revenue, relying for the rest on time, discussion, and the ballot-box. It promised a continuance of the mails, at Government expense, to the very people who were resisting the Government, and it gave repeated pledges against any disturbance, to any of the people or any of their rights. Of all that which a President might constitutionally and justifiably do in such a case, everything was forborne without which it was believed possible to keep the Government on foot.

On the 5th of March (the present incumbent's first full day in office), a letter of Major Anderson, commanding at Fort Sumter, written on the 28th of February, and received at the War Department on the 4th of March, was, by that Department, placed in his hands. This letter expressed the professional opinion of the writer that re-enforcements could not be thrown into that fort, within the time for his relief rendered necessary by the limited supply of provisions and with a view of holding possession of the same, with a force of less than 20,000 good and well-disciplined men. This opinion was concurred in by all the officers of his command, and their memoranda on the subject were made inclosures of Major Anderson's letter. The whole was immediately laid before Lieutenant-General Scott, who at once concurred with Major Anderson in opinion. On reflection, however, he took full time, consulting with other officers, both of the Army and the Navy, and at the end of four days came reluctantly, but decidedly, to the same conclusion as before. He also stated at the same time that no such sufficient force was then at the control of the Government or could be raised and brought to the ground within the time when the provisions in the fort would be exhausted. In a purely military point of view this reduced the duty of the Administration in the case to the mere matter of getting the garrison safely out of the fort.