A recent proclamation of the present governor of South Carolina has openly defied the authority of the Executive of the Union, and general orders from the headquarters of the State announced his determination to accept the services of volunteers and his belief that should their country need their services they will be found at the post of honor and duty, ready to lay down their lives in her defense. Under these orders the forces referred to are directed to "hold themselves in readiness to take the field at a moment's warning," and in the city of Charleston, within a collection district, and a port of entry, a rendezvous has been opened for the purpose of enlisting men for the magazine and municipal guard. Thus South Carolina presents herself in the attitude of hostile preparation, and ready even for military violence if need be to enforce her laws for preventing the collection of the duties within her limits. Proceedings thus announced and matured must be distinguished from menaces of unlawful resistance by irregular bodies of people, who, acting under temporary delusion, may be restrained by reflection and the influence of public opinion from the commission of actual outrage. In the present instance aggression may be regarded as committed when it is officially authorized and the means of enforcing it fully provided. Under these circumstances there can be no doubt that it is the determination of the authorities of South Carolina fully to carry into effect their ordinance and laws after the 1st of February. It therefore becomes my duty to bring the subject to the serious consideration of Congress, in order that such measures as they in their wisdom may deem fit shall be seasonably provided, and that it may be thereby understood that while the Government is disposed to remove all just cause of complaint as far as may be practicable consistently with a proper regard to the interests of the community at large, it is nevertheless determined that the supremacy of the laws shall be maintained. In making this communication it appears to me to be proper not only that I should lay before you the acts and proceedings of South Carolina, but that I should also fully acquaint you with those steps which I have already caused to be taken for the due collection of the revenue, and with my views of the subject generally, that the suggestions which the Constitution requires me to make in regard to your future legislation may be better understood. This subject having early attracted the anxious attention of the Executive, as soon as it was probable that the authorities of South Carolina seriously meditated resistance to the faithful execution of the revenue laws it was deemed advisable that the Secretary of the Treasury should particularly instruct the officers of the United States in that part of the Union as to the nature of the duties prescribed by the existing laws.