From NORTHERN MEXICO we have news of a renewed repulse of Carvajal, whom our last Record left on the Rio Grande, recruiting his forces. General Avalos fortified Matamoras against an expected attack, which had created great alarm among the inhabitants. On the 20th of February Carvajal attacked Camargo with a force of over 500 men, but he was repulsed with decided loss. He succeeded in escaping to the American side of the Rio Grande. Of his whole force it is stated that only 84 were Mexicans. From SOUTH AMERICA we have intelligence of a later date. In _Venezuela_, from which we have news to the 1st of February, Congress opened on the 25th of January. The Message of President Monagas announces a great improvement in the financial condition of the country. All the obligations on account of the public service have been met--the expenses of the wars of 1848 and 1849 have been partially liquidated--the interest on the domestic debt, which has not been satisfied since 1847, has been paid, and the installments on the foreign debt, which have been neglected for some years, have been promptly remitted to London--thus improving the national credit abroad.----From the _La Plata_ we have intelligence of an engagement, about the 1st of January, between the forces of Rosas and Urquiza, which is said to have resulted in the victory of the former, and in the desertion to his standard of five thousand of Urquiza's troops. It is not easy to say how much of this is reliable.----Political offenders in _Chili_ have been for some years banished to the Straits of Magellan. An insurrection took place among them lately, in which they killed the governor, seized the garrison, and declared themselves independent of Chili. It is said that they have also seized two or three American vessels. GREAT BRITAIN. The political events of the month in England have been of striking interest and importance. The expulsion of Lord Palmerston from the Cabinet, mainly for offenses against etiquette--the meeting of Parliament, and the subsequent defeat and retirement of the Russell Ministry, with the reinstatement of a Protectionist Cabinet, are certainly events of more consequence than are usually crowded into a single month.