The interior is of the Doric order, and has three aisles, divided by eight pillars, upon which with the walls are placed eighteen arches, the centre one forming the dome of the edifice. It runs from north to south, has three great gates, one fronting Mexico, and two others at the sides. Its length may be two hundred and fifty feet, and its width about one hundred and thirty. In the four external angles of the church are four lofty towers, in the midst of which rises the dome. Three altars were at first erected, and in the middle one, destined for the image, was a sumptuous tabernacle of silver gilt, in which were more than three thousand two hundred marks of silver, and which cost nearly eighty thousand dollars. In the centre of this was a piece of gold, weighing four thousand and fifty castellanos (an old Spanish coin, the fiftieth part of a mark of gold), and here the image was placed, the linen on which it is painted guarded by a silver plate of great value. The rest of the temple had riches corresponding. The candlesticks, vases, railing, etc., contain nearly fourteen thousand marks of silver, without counting the numerous holy vessels, cups and chalices adorned with jewels. One golden lamp weighed upwards of two thousand two hundred castellanos—another seven hundred and fifty silver marks.

In 1802 some part of the walls and arches began to give way—and it was necessary to repair them. But first, under the direction of the celebrated sculptor Tolsa, a new altar was erected for the image. His first care was to collect the most beautiful marbles of the country for this purpose—the black he brought from Puebla, and the white, gray and rose-coloured from the quarries of San José Vizarron. He also began to work at the bronze ornaments, but from the immense sums of money necessary to its execution, the work was delayed for nearly twenty years. Then, in 1826, it was recommenced with fresh vigour. The image was removed meanwhile to the neighbouring convent of the Capuchinas, and the same year the altar was concluded, and the Virgin brought back in solemn procession, in the midst of an innumerable multitude. This great altar, which cost from three to four hundred thousand dollars, is a concave hexagonal, in the midst of which rise two white marble pillars, and on each side two columns of rose-coloured marble, of the composite order, which support the arch. Between these are two pedestals, on which are the images of San Joaquin and Santa Anna, and two niches, containing San José and St. John the Baptist. Above the cornices are three other pedestals, supporting the three Saints, Michael, Gabriel, and Raphael; and above St. Michael, in the midst of cherubim and seraphim, is a representation of the Eternal Father. The space between the upper part of the altar and the roof, is covered with a painted crimson curtain, held by saints and angels. The tabernacle in the centre of the altar, is of rose-coloured marble, in which the image is deposited, and all the ornaments of the altar are of gilt bronze and zinc.

Besides the collegiate and the parish church, there are at Guadalupe the church of the Capuchin Nuns, and the churches of the Hill and the Well; all in such close conjunction, that the whole village or city, as it calls itself, seems altogether some religious establishment or confraternity, belonging to these temples and churches, united in the worship of the Virgin, and consequent upon the "Miraculous Apparition" manifested to the chosen Indian, Juan Diego.

I regret not having known till lately, that there exists in Mexico a convent of Indian Nuns: and that each nun, when she takes the veil, wears a very superb Indian dress—the costume formerly worn by the cacicas, or ladies of highest rank.

I went some days ago with the Señorita F—-a to visit a house for insane women, in the Calle de Canoa, built in 1698, by the rich congregation of el Salvador. The institution is now in great want of funds; and is by no means to be compared with the establishment of San Hipólito. The directress seems a good kind-hearted woman, who devoted herself to doing her duty, and who is very gentle to her patients; using no means but those of kindness and steadiness to subdue their violence. But what a life of fear and suffering such a situation must be! The inmates look poor and miserable, generally speaking, and it is difficult to shake off the melancholy impression which they produce on the mind. We were particularly struck by the sight of one unfortunate woman of the better class, who, with her long hair all dishevelled, and eyes sparkling with a wild light, stood at the open window of her cell, where for the present they are obliged to confine her, and who poured forth the most piteous lamentations, and adjured every one who passed, in the most pathetic terms, to restore her husband and children to her. One girl was singing cheerfully—one or two women were sewing, but most of them were sitting crouched on the floor, with a look of melancholy vacancy. The poor are admitted gratis, and the richer classes pay a moderate sum for their board….

To turn to a very different theme. We continue to go to the opera, certainly the most agreeable amusement in Mexico, and generally to the ——- Minister's box, in the centre. Last evening, Belisario was repeated, but with less splendour than on its representation in honour of Santa Anna.

We expect to leave this on the sixteenth, going in a diligence as far as Toluca, where a Mexican officer, Colonel Y——, has kindly promised to meet us with mules and horses. M. le Comte de B—— and Mr. W——, secretaries of the French and English Legations, have made arrangements for accompanying us as far as Valadolid; with which agreeable travelling companions we may reasonably expect a pleasant journey.

Last Sunday was the festival of All Saints; on the evening of which day, we walked out under the portales, with M. and Madame de ——-, ——- Minister and his wife, to look at the illumination, and at the numerous booths filled with sugar skulls, etc.; temptingly ranged in grinning rows, to the great edification of the children. In general there are crowds of well-dressed people on the occasion of this fête, but the evening was cold and disagreeable, and though there were a number of ladies, they were enveloped in shawls, and dispersed early. The old women at their booths, with their cracked voices, kept up the constant cry of "Skulls, niñas, skulls!"—but there were also animals done in sugar, of every species, enough to form specimens for a Noah's ark.

14th.-We leave this the day after to-morrow, and shall write from our first halting-place; and as on our return we shall do little more than pass through Mexico, we are almost taking leave of all our friends. Were I to tell you all the kindness and hospitality, and cordial offers of service that we receive, and the manner in which our rooms (albeit the rooms of an inn) are filled from morning till night, it would seem an exaggeration. One acquaintance we have made lately, whom we like so much, that we have been vociferously abusing the system of faire part in this city, since, owing to the mistake of a servant, we have until now been deprived of the pleasure of knowing her. The mistake is rectified at the eleventh hour. The lady is the Señora de G—-z P—-a, one of the most accomplished and well-informed women in Mexico; and though our friendship has been short, I trust it may be enduring.

Two evenings since, we went with the Señora de C—-s to an amateur concert; and I question whether in any capital of Europe, so many good amateur voices could be collected. I do not speak of the science or cultivation, though the hostess, the Señora A——, has a perfect method. But yesterday we spent a most agreeable evening in a delightful family reunion, at the house of Señor N—-i del B—-o. It was strictly limited to the family relations, and was, I believe, his jour de fête. If all Mexican society resembled this, we should have too much regret in leaving it. The girls handsome, well educated, and simple in their manners and tastes—the Countess a model of virtue and dignity. Then so much true affection and love of home amongst them all! So much wealth and yet good taste and perfect simplicity visible in all that surrounds them! Mexico is not lost as long as such families exist, and though they mingle little in society, the influence of their virtues and charities is widely felt.