"But of all the disciples now ministering to St. Paul at Rome, none has a greater interest than the fugitive Asiatic slave Onesimus. He belonged to a Christian named Philemon, a member of the Colossian Church. But he had robbed his master, and fled from Colosse, and at last found his way to Rome. Here he was converted to the faith of Christ, and had confessed to St. Paul his sins against his master."--_Conybeare and Howson, Life of St. Paul._ A fountain in the crypt is shown, as having miraculously sprung up in answer to the prayers of St. Paul, that he might have wherewithal to baptize his disciples. At the end of the crypt are some large blocks of peperino, said to be remains of the arch erected by the senate in honour of the Emperor Gordian III., and destroyed by Innocent VIII. Far along the right side of the Corso now extends the façade of the immense _Palazzo Doria_, built by Valvasori (the front towards the Collegio Romano being by Pietro da Cortona, and that towards the Piazza Venezia by Amati). Entering the courtyard, one must turn left to reach the _Picture Gallery_ (which is open on Tuesdays and Fridays, from ten till two)--a vast collection, which contains some grand portraits and a few other fine paintings. The _1st Room_ entered is a great hall--to which pictures are removed for copying. It contains four fine sarcophagi, with reliefs of the Hunt of Meleager, the Story of Marsyas, Endymion and Diana, and a Bacchic procession. Of two ancient circular altars, one serves as the pedestal of a bearded Dionysus. The pictures are chiefly landscapes, of the school of Poussin and Salvator Rosa,--that of the Deluge is by _Ippolito Scarsellino_. _2nd Room._--In the centre a Centaur (restored), of basalt and rosso-antico. On either side groups of boys playing. _Pictures:_-- 4. Caritas Romana: _Valentin_. 5. Circumcision: _Giov. Bellini?_ 7. Madonna and Saints: _Basaiti_. 15. Temptations of St. Anthony: _Scuola di Mantegna_. 19. St. John in the Desert: _Guercino?_ 35. Birth of St. John: _Vittore Pisanello_. 21. Spozalizio: _V. Pisanello_. 23. St. Sylvester before Maximin II.: _Pesellino_. 24. Madonna and Child: _F. Francia?_ 28. Annunciation: _Fil. Lippi_. 29. St. Sylvester and the Dragon: _Pesellino_ (see the account of Sta. Maria Liberatrice). 33. St. Agnes on the burning pile: _Guercino_. 37. Magdalen: _Copy of the Titian in the Pitti Palace_. _4th Room._-- A bust of Innocent X. (with whose ill-acquired wealth this palace was built) in rosso-antico, with a bronze head: _Bernini_. _5th Room._-- 17. The Money-changers: _Quentin Matsys_. 25. St. Joseph: _Guercino_. In the centre, a group of Jacob wrestling with the Angel: _School of Bernini_. _6th Room._-- 8. Portrait of Olympia Maldacchini, the sister-in-law of Innocent X., who ruled Rome in his time.