FORT MOULTRIE, S.C., December 11, 1860.

Memorandum of verbal instructions to Major Anderson, First Artillery, commanding at Fort Moultrie, S.C.

You are aware of the great anxiety of the Secretary of War that a collision-of the troops with the people of this State shall be avoided, and of his studied determination to pursue a course with reference to the military force and forts in this harbor which shall guard against such a collision. He has therefore carefully abstained from increasing the force at this point, or taking any measures which might add to the present excited state of the public mind, or which would throw any doubt on the confidence he feels that South Carolina will not attempt, by violence, to obtain possession of the public works or interfere with their occupancy. But as the counsel and acts of rash and impulsive persons may possibly disappoint those expectations of the Government, he deems it proper that you should be prepared with instructions to meet so unhappy a contingency. He has therefore directed me verbally to give you such instructions.

You are carefully to avoid every act which would needlessly tend to provoke aggression; and for that reason you are not, without evident and imminent necessity, to take up any position which could be construed into the assumption of a hostile attitude. But you are to hold possession of the forts in this harbor, and if attacked you are to defend yourself to the last extremity. The smallness of your force will not permit you, perhaps, to occupy more than one of the three forts, but an attack on or attempt to take possession of any one of them will be regarded as an act of hostility, and you may then put your command into either of them which you may deem most proper to increase its power of resistance. You are also authorized to take similar steps whenever you have tangible evidence of a design to proceed to a hostile act.

                                        D.C. BUELL,

Assistant Adjutant-General.