xiii 49. Botticelli, Castello Annunciation, Galleria degli Uffizi, Florence .................... 158 50. Alessio Baldovinetti, Annunciation, Galleria degli Uffizi, Florence ................. 159 51. Francesco Traini, Triumph of St. Thomas, Santa Caterina, Pisa ........................ 185 52. Francesco Traini, Triumph of St. Thomas, detail showing Christ with nine rays of inspiration descending from his mouth Santa Caterina, Pisa ................. 186 53. Francesco Traini, Triumph of St. Thomas, detail showing St. Mark and the ray of inspiration from Christ, which is visible crossing the halo of the Saint, Santa Caterina, Pisa ................................................................................. 187 54. Francesco Traini, Triumph of St. Thomas, detail showing Plato and the absence of a ray of inspiration from Christ, Santa Caterina, Pisa ...................... 188 55. Pietro Perugino, Lunette with Prudence, Justice, and Six Uomini Famosi, from the Collegio del Cambio, Perugia ............................................................. 189 56. View of the Collegio del Cambio, with fresco decoration by Pietro Perugino, Perugia. The lunette depicting God the Father over Jewish Uomini and the Sibyls is to the right and the Nativity is at right center ............ 190 57. Pinturicchio, Dialectic, from the Sala delle Arti Liberali, the Borgia Apartments, the Vatican..................................................................................... 191 58. Pinturicchio, Geometry, from the Sala delle Arti Liberali, the Borgia Apartments, the Vatican..................................................................................... 192 59. Pinturicchio, Music, from the Sala delle Arti Liberali, the Borgia Apartments, the Vatican..................................................................................... 193 60. Mosaic panel depicting Hermes Trismegistus, from the floor of the Duomo, Siena. .................................................................................................... 194 61. Pinturicchio, Io-Isis and Moses as the Sources of Egyptian Law and Letters, fresco decoration of the Sala dei Santi, the Borgia Apartments, the Vatican ......................................................................................................... 195 62. Luca Signorelli, The Testament and Death of Moses, detail with the nude figure in the lower left corner, south wall of the Sistine Chapel, the Vatican, c. 1481 ................................................................................................. 196 63. Raphael, School of Athens, fresco on the east wall of the Stanza della Segnatura, the Vatican, Rome. ........................................................................... 253 .