From Capua to Naples, the distance is but fifteen miles, over a flat, uninteresting country. We entered "this third city in the world" in the middle of the afternoon, and were immediately surrounded with beggars of every conceivable degree of misery. We sat an hour at the gate while our passports were recorded, and the vetturino examined, and then passing up a noble street, entered a dense crowd, through which was creeping slowly a double line of carriages. The mounted dragoons compelled our postillion to fall into the line, and we were two hours following in a fashionable corso with our mud-spattered vehicle and tired horses, surrounded by all that was brilliant and gay in Naples. It was the last day of carnival. Everybody was abroad, and we were forced, however unwillingly to see all the rank and beauty of the city. The carriages in this fine climate are all open, and the ladies were in full dress. As we entered the Toledo, the cavalcade came to a halt, and with hats off and handkerchiefs flying in every direction about them, the young new-married Queen of Naples rode up the middle of the street preceded and followed by outriders in the gayest livery. She has been married about a month, is but seventeen, and is acknowledged to be the most beautiful woman in the kingdom. The description I had heard of her, though very extravagant, had hardly done her justice. She is a little above the middle height, with a fine lift to her head and neck, and a countenance only less modest and maidenly than noble. LETTER LV. ROME--FRONT OF ST. PETER'S--EQUIPAGES OF THE CARDINALS-- BEGGARS--BODY OF THE CHURCH--TOMB OF ST. PETER--THE TIBER--FORTRESS-TOMB OF ADRIAN--JEWS' QUARTER--FORUM BARBERINI PALACE--PORTRAIT OF BEATRICE CENCI--HER MELANCHOLY HISTORY--PICTURE OF THE FORNARINA--LIKENESS OF GIORGIONE'S MISTRESS--JOSEPH AND POTIPHAR'S WIFE--THE PALACES DORIA AND SCIARRA--PORTRAIT OF OLIVIA WALDACHINI--OF "A CELEBRATED WIDOW"--OF SEMIRAMIS--CLAUDE'S LANDSCAPES--BRILL'S-- BRUGHEL'S--NOTTI'S "WOMAN CATCHING FLEAS"--DA VINCI'S QUEEN GIOVANNA--PORTRAIT OF A FEMALE DORIA--PRINCE DORIA--PALACE SCIARRA--BRILL AND BOTH'S LANDSCAPES--CLAUDE'S--PICTURE OF NOAH INTOXICATED--ROMANA'S FORNARINA--DA VINCI'S TWO PICTURES.