LIST OF ILLUSTRATIONS. Vol. I. Page Picture of Christ; from a ceiling in the Catacombs of SS. Nereo ed Achilleo, at Kome 4 Head of Christ; from the Catacomb of S. Ponziano in Rome 9,10 Mosaics of the 6th century in S. Vitale at Ravenna, representing Justinian and Theodora 27 Head of Christ ; from the Catacomb of S. Ponziano in Rome 42, 43 Mosaics of the 9th century in S. Prassede at Rome 51 Mosaics of the Tribune of S. John Lateran in Rome 92 Mosaics of the Tribune of S. Maria Maggiore in Rome 94 4 Large painting by Guido da Siena, in the Church of St. Domenico at Siena, dated 1221 181 Madonna Enthroned, by Cimabue, in S. Maria Novella at Florence 203 Perspective of the Upper Church of S. Francesco, Assisi 214 St. Francis in Glory ; a painting by Giotto on the Vault of the Lower Church at Assisi 237 St. Francis wedded to Poverty; a painting by Giotto, in the Lower Church of S. Francesco at Assisi 237 Allegory of Chastity ; a painting by Giotto in the Lower Church of S. Francesco at Assisi 238 Allegory of Obedience ; a painting by Giotto in the Lower Church of S. Francesco at Assisi 240 The NaviCELLA ; a mosaic, partly from a design by Giotto, in the Vestibule of St. Peter’s at Rome 253 Portraits of Dante, Corso Donati, and Brunetto Latini ; painted by Giotto, in the Chapel of the Podestl at Florence 265 Youthful Portrait of Dante, by Giotto; after restoration 265 Perspective of the Chapel of the Arena at Padua 277