To-morrow Congress assembles. It is to be apprehended that a conflict with the Executive will ensue—instead of unanimity against the common enemy—and no one living can foretell the issue, because no one knows the extent of capacity and courage on either side.

The President has made his cabinet a unit.

December 7th.—Cold and clear. Gen. Longstreet telegraphs to-day from Rutledge, Tenn., some fifty miles northeast of Knoxville, and says he will soon need railroad facilities. He is flying from superior numbers, and may be gathering up supplies.

Governor Vance writes distressfully concerning the scarcity of provisions in certain counties of North Carolina, and the rudeness of impressing agents.

Lieut.-Gen. Hardee telegraphs from Dalton that 5000 cavalry, besides two brigades of Buckner’s command, are with Longstreet, and that other troops ought to be sent him (H.) to compensate for these detachments.

Mr. L. S. White obtained another passport yesterday to go to Maryland, on the recommendation of Col. Gorgas, Chief of Ordnance.

There was a quorum in Congress to-day; but the message was not sent in.

A five-dollar gold piece sold at auction on Saturday for $140—$28 in Confederate notes for one of gold.

December 8th.—The President’s message was sent to Congress to-day. I was not present, but my son Custis, who heard it read, says the President dwells largely on the conduct of foreign powers. To diminish the currency, he recommends compulsory funding and large taxation, and some process of diminishing the volume of Treasury notes. In other words, a suspension of such clauses of the Constitution as stand in the way of a successful prosecution of the war. He suggests the repeal of the Substitute law, and a modification of the Exemption act, etc. To-morrow I shall read it myself.

December 9th.—The President’s message is not regarded with much favor by the croakers. The long complaint against foreign powers for not recognizing us is thought in bad taste, since all the points nearly had been made in a previous message. They say it is like abusing a society for not admitting one within its circle as well as another. The President specifies no plan to cure the redundancy of the currency. He is opposed to increasing the pay of the soldiers, and absolutely reproaches the soldiers of the left wing of Bragg’s army with not performing their whole duty in the late battle.