MEXICO.Tbc Sew York Nerald thus describes the Ueii. can capital:—** Conspicuous amidst the beauty and magnificence of the city of Mexico ia the Main Plata. It covers an area of twelve acr?s, paved with marble, forming one of the most beautiful promenades in the world. Oil every aide ot this great square, magnificent and costly public build* inga are situated. On one side ia teen the spacious cathedra), which extenda the whole length of ano* iher side. The cathedral ia erected on the side of the great idol temple of the Aztecs, and the government palace on the ground of the palace of the great Montezuma. The amount of wealth in the cathedral is locredible. The altar ia covered with plates of massive silver, and beautified with ornaments of masaive gold. TSe balustrade enclosing the altar extenda a length of 100 leel, and ia made of a maasive composition of gold, silver, and copper, the value of which la exceedingly gre.«t. Statuea, vases, and candlesticks of gigantic size are scattered through the building; and when we know that theae too are made from the precious metals, we can form an idea of the immense wealth of this cathedral. There are about eighty churches in addition to the cathedral, richly ornamented with gold, ailver, and precious atonea. and it ia auppoaed that the wealth which ia exhibited in thia manner ia nothing to the immense treaaurea that are kepi in concoalment by the prieata. The city of Mexico can also boaat of A splendid theatre or opera-houae, which was erected at ao immense coat, and ia capa-ble of aeating 10,000 persona comfortably. On the weatero side of the city is another square ot forty-five acres, with a fountain in the centre. It ia laid out into pleaaant walks, and much frequented in the eveninga aa a promenade. The city of Mexico, like the city of New York, has its fashionable driveils Third Avenue. We must, however, acknowledge that the Third Avenue cannot be compared to it for beauty and extent. Some idea of its extent may be formed from the fact that it is one mile wide, on which the moat splendid carriagea in innumerable numbera may be aeen every evening. It is not uqususI to see 7000 or 8000 horsemen and 2000 carriages on it the same time. This ia a faint deacription of the city of Mexico, now probably in posseaaion of the American troopa. When we reflect on its beauty and magnificence, we are not at all aurpriaed that the enemy preferred to allow oar army to occupy it without making any reeiatance ; for it it were bombarded to the same way aa Vera Crus was, the damage could never be remedied. We are mueh eurprised, however, when we consider the wealth of the churches, that the Americana did not plunder them.i' a___:_______-__j.u L—