The Thirty-second Congress met, in its first session, on the 1st of December. A caucus of the Democratic members met on the Saturday evening previous:--at this meeting a resolution pledging the party to sustain the Compromise measures was laid upon the table by a vote of 50 to 30--mainly on the ground that it was not a proper occasion for action upon that subject. On Monday morning, a caucus of Whig members was held, and a similar resolution was passed. In the House of Representatives, Hon. Linn Boyd of Kentucky was elected Speaker, and John W. Forney of Pennsylvania, Clerk. A resolution, offered by Mr. Seward of New York, declaring that, on behalf of the People of the United States, Congress extended to Kossuth a welcome to the Capital and to the Country, was passed, there being six nays in the Senate and sixteen in the House of Representatives. Some little debate was had upon the subject in the Senate,--but none in the House.--Senator Foote, of Mississippi, offered a series of resolutions declaring the Compromise measures of 1850 a final settlement of the questions to which they relate. They were under discussion in the Senate when our Record closed. The President's Message was sent in on Tuesday. It presents in a clear and able manner the condition of the country, and the events of the past year. It congratulates Congress on the preservation of peace, and on the abatement of those sectional agitations which for a time threatened to disturb the harmony of the Union. A detailed narrative is given of the invasion of Cuba, and the events by which it was followed. The steamer Pampero, with about 400 men, left New Orleans for Cuba on the 3d of August, in spite of the precautions which had been taken to prevent it. The expedition was set on foot in palpable violation of the laws of the United States. The steamer landed those on board on the night of August 11th, at Playtas, twenty leagues from Havana, whence the main body of them marched to an inland village in the interior. The remainder were attacked on the 13th, by a body of Spanish troops, captured, taken to Havana and shot. The main body was dispersed August 24th, and their leader Lopez, executed on the 1st of September. Of those taken prisoners several were pardoned, and about 160 sent to Spain. The Government will spare no proper efforts to procure their release; but its purpose is proclaimed to enforce rigidly the laws which prevent its citizens from interfering with the concerns of foreign nations. No individuals, it is declared, have a right to hazard the peace of the country or to violate its laws, upon vague notions of altering or reforming governments in other states; but every independent nation, it is added, must be able to defend its possessions against unauthorized individuals banded together to attack them. The Government of the United States will rigidly adhere to, and enforce its policy of neutrality, which they were among the first to proclaim and establish.