The Port Gibson Correspondent

From the Pensacola Democrat, (Extra)

March 20.

LATE FROM MEXICO.

The U. S. brig Somers, Com'r Ingram arrived at this port yesterday afternoon from Vera Cruz, making the passage in 8 days. As the news received by this arrival is of importance we hasten to lay it before our readers in advance of our publication day, by means of an extra.

We are indebted to a citizen of this city for the following extract of a letter from an officer on board the Somers which embraces all the most important items of news.

On the 16th Mr. Dimond was informed by a letter from Mr. Parrot of the Legation, that Mr. Slidell had demanded his passports, having been refused reception as Minister, although the Mexican Cabinet expressed a perfect willingness to treat with a Commissioner on the Texas question. He also wrote that Mr. Slidell would be in Vera Cruz in the course of a week, and would immediately take passage therefrom for the United States. The St. Mary's was in readiness for his accommodation when we left.

On the 18th Com. Conner received a letter from Mr. Black, our Consul in Mexico. He appeared to be somewhat exhilarated by the cheering intelligence brought from England by the Cambria, which he had just received. He writes that if this news had been sooner received Mr. Slidell would have been received and throws out a suggestion that our Mission may be accepted at the latest moment. Although Mr. Black's location should give him many advantages for forming accurate opinions, I do not think we have much reason to hope that his hopes will be realized, although almost anything may be expected from the unstable councils of Mexico. Mr. Slidell has certainly demanded his passports at a fortunate moment, when the news from England and the state of the country, and more especially the fear of our squadron are conspiring to act on the irresolution of Mexico.

The people of Vera Cruz are awfully frightened and are (as will be seen by the newspapers) moving out of the city. The Mexican Navy has been taken in tow of the steamers to a place of absolute safety, far up one of the neighboring rivers.

The people of Vera Cruz wish to see the question between us settled, and having never been very warmly attached to a revolutionary government, threaten a pronunciamento unless their wishes are regarded.

Upon the whole I have never seen the sentiment of the people so favorable to us as at present, the discussion of this monarchy question has I am persuaded done much for us. Nine-tenths of the people of Mexico are ardent Republicans; it is only a few of the high class and aristocracy who support the views of the royal party. There is an interesting article on this subject in the last papers.

The British Minister writing to the English commander on the station says that he cannot persuade these people that England will not co-operate with them against the United States—they have the greatest confidence that England is going to interfere to prevent their being bullied by us, but he has unequivocally intimated that their hopes would not be realized.

edes on the freedom of the press and justice of the flagrant attack by Gen. Paredes on the persons of the editors and printers. This is a dangerous proceeding on the part of the President, and must arouse strong resentment and a fearful opposition.

A large part of the troops under Gen. Ampudia have mutinied.

We have received reports from Jalapa that the Northern Provinces are about to secede from the Confederacy.