From this chapel of the Popes I came through a narrow passage to a wider crypt, where the body of St. Caecilia was laid after her martyrdom in her own house in Rome, in the year 224. There is a rude painting of this saint on the wall, clothed with rich raiment, and adorned with the jewels befitting a Roman lady of high station. And at the back of a niche, where a lamp used to burn before the shrine of the saint, is painted a large head of our Saviour, with rays of glory around it shaped like a Greek cross. This is said to be the oldest representation of our Lord in existence, and from it all our conventional portraits have been taken. Doubts have, however, been thrown upon this by others, who assert that all the paintings in this chamber are not older than the seventh century. After this, I wandered on after my guide through innumerable narrow galleries hewn out of the soft reddish-brown rock, and opening in all directions; all lined with horizontal cavities for corpses, tier above tier, in which once were crowded together old and young,--soldiers, martyrs, rich and poor mingling their dust together, as in life they had shared all things in common. Here social distinctions were abolished; side by side with the obscure and unknown slave were some of the most illustrious names of ancient Rome. These shelves are now empty, for nearly all the bones and relics of the dead have been removed to different churches throughout Europe. Even the inscriptions that were placed above each grave--on marble tablets--have been taken away, and now line the walls of the museums of St. John Lateran and the Vatican. A few, however, remain in their place; and I know nothing more affecting than the study of these. For the most part, they are very short, containing only the name and date; sometimes only an initial letter or a rudely-drawn cross, indicating that it was a time of sore trial, when such hurried obsequies were all that the imminent danger allowed. Sometimes I came upon a larger record--such as, "Thou sleepest sweetly in God;" "In the sleep of peace."