New Orleans, La., December 13, 1860.

His Excellency, J. J. PETTUS,

                                Jackson, Miss. 

Sir:—In discharge of the duties imposed by my appointment as Commissioner to the State of Louisiana, I beg to report to your Excellency, that I repaired without delay to Baton Rouge, the Capital of the State, where the Legislature had convened in extraordinary session on the 10^th instant.

On my arrival I promptly notified the Governor of Louisiana of my presence and the objects of my mission by addressing him the inclosed communication. Governor Moore immediately responded to my note by requesting a personal interview in the Executive Chamber, to which I repaired, and was most cordially, and courteously received by himself and the Hon. T. J. Semmes, Attorney-General of the State. 

In an unwavered interview of an hour with them, I explained, to the best of my ability, the views of your Excellency regarding the present, grave crisis in our political affairs, and the action of the Legislature of Mississippi in reference thereto at their late extra session. I dwelt upon the unanimity which characterized their proceedings, the overwhelming public sentiment by which they were sustained in the State, and the certain prospect of the prompt secession of Mississippi from a Federal Union, which must become, under the Black Republican regime soon to be inaugurated, the engine of the degradation and destruction of the South. I solicited the co-operation of Louisiana in the action Mississippi proposed to take as the only means left for the protection of Southern Rights and honor. I was gratified to learn from these distinguished patriots and statesmen that the action and predominant sentiment of Mississippi met with their cordial sanction and sympathy, and that they had every confidence the people of Louisiana would vindicate the constitutional rights of the South by the action of their State Convention.

During my interview with Gov. Moore, I was waited upon by a committee of both branches of the Legislature and invited to a seat within the bar of their respective chambers. 

On the day following at 10 o'clock, I was formally received by the Legislature in joint session, when in reply to the remarks I had the honor to submit, Lieutenant-Governor Hyams, President of the Senate, made an able and eloquent address, a copy of which I herewith furnish as indicative of the sentiment of Louisiana.

After further conference with the Governor, Lieutenant-Governor, Attorney-General, and the members of the Legislature, I took my leave of them, and shall ever cherish the most grateful recollection of the courtesy, kindness and cordial hospitality I received at their hands. 

The Legislature, by a unanimous vote has called a Convention, to assemble on the 23d of January proximo, and I think I may with entire confidence, predict that within a few days thereafter she will assume her place in the great Southern column, freed of Federal shackles, and resolve to submit only to such a Government as brave and honorable men can approve.

I have the honor to remain,

Your obedient servant,

WIRT ADAMS, Commissioner.

Harney House, Baton Rouge, La., December 11,1860.

To His Excellency, T. O. MOORE,

Governor of La.

Sir: I have the honor to place herewith in the hands of your Excellency my credentials as Commissioner from the State of Mississippi to the State of Louisiana, and accompanying the same a copy of the Resolutions passed by the Legislature of my State, under the sanction of which His Excellency the Governor of Mississippi has made this and other appointments.

In discharge of the trust thus confided to me, it will afford me the highest pleasure to communicate with your Excellency in writing, or by a personal interview, at such time as may be most consistant with your convenience and pleasure.

I have the honor, sir, to subscribe myself,

Your most obedient servant,

WIRT ADAMS, Commissioner.