American Republican And Baltimore Daily Clipper

Interesting from Texas and Mexico—Singular Rumors—Return of Mr. Slidell—The Mexican Army, &c. The Corpus Christi Gazette, Extra, of the 12th inst. contains advices from the city of Mexico to the 21st ult., and from the Rio Grande to the 7th inst., received by special despatch. The intelligence, altho' but little later than already received via Pensacola, is important, if true, and the Gazette says it is fully confirmed by undoubted information:

The Hon. Mr. Slidell left the City of Mexico to return to the United States on the 17th January. The passport for which he applied was refused him by the government, but he was furnished with an escort to Vera Cruz. The passport was refused upon the ground that he was not a Special Minister of the United States for the settlement of the affairs of Texas—his appointment being that of a Minister Plenipotentiary, which was in violation of the agreement made with Herrera's Government to receive a Special Minister for a special purpose only.

On the 14th of January, the Minister of War issued an order for all the unattached officers (officiales sueltos) in depot, to repair immediately to the frontier, and join the army concentrating upon the Rio Grande for the defence of their national rights in Texas. The present number of the officers is about 5,000. These alone are sufficient to officer an army of 100,000 men.

On the same day, a circular order was issued by the Minister of the Interior, to the Governors of Departments of States, that all the ancient presidial cavalry, regular troops, about 3000 strong, should be immediately mustered into service, for the invasion of Texas, and defence of the Rio Grande.

On the 18th of January, Gen. Paredes issued a circular order to all the Governors of States, that within forty days from that date, they shall furnish the necessary quota of men to fill up the Army of Invasion to a war complement—60,000 men. The present army does not exceed 40,000. The troops now at the Capital are constantly drilled with a view to act in large bodies.

We have received the official Proclamation of Gen. Francisco Mejia, to the troops under his command at Matamoros, dated January 17th, which breathes hostility to the United States.

Gen. Theophilo Borero, formerly Governor of San Luis Potosi, and a man of liberal principles, has been struck from the roll of the Army by order of Gen. Paredes, for having "remained faithful to his oath of allegiance," and refusing to acknowledge the usurpation of that General.

The Juntas of Guanajuato, Morelia, Zacatecas, and several of the other States, have solemnly protested against the overthrow of General Herrera's Government—but having been forced to submit to that of General Paredes, they have ceased to exist as legislative bodies, and thus left the country without any legal government. Chihuahua still holds out manfully against Gen. Paredes.

The bearer of the above despatch reports a considerable force of Commissioners or Customs Guards, near the mouth of the Grullo, or San Gertrudes, within less than 20 leagues of the Camp at Corpus Christi. Another party has been seen about the same distance from this place, but a considerable distance from the Gulf, in the interior, watching for return parties of Mexican traders.

A large party of traders arrived here last night, bringing in nearly 1000 mules and horses of superior quality. They saw Lieut. Hamilton, having about 40 men of the 2d Dragoons and 15 wagons, on the 9th inst., and within a short distance of the rendezvous of a commission party.