The early editions of his texts are among the most superb works ever printed.

He outlived his reputation as a magician, and more than a century after his death Frederick, Duke of Urbino, caused his effigies to be set up over the gate of the palace at Padua with this inscription: PETRUS APONUS PATAVINUS PHILOSOPHIAE MEDICINAEQUE SCIENTISSIMUS, OB IDQUE, CONCILIATORIS NOMEN ADEPTUS, ASTROLOGIAE VERO ADEO PERITUS, UT IN MAGIAE SUSPICIONEM INCIDERIT, FALSOQUE DE HAERESI POSTULATUS, ABSOLUTUS FUERIT.( 21) (21) Naude: History of Magick, London, 1657, p.

182, or the original: Apologie pour les grands hommes soupconnez de magic, e.g., ed.Amst., 1719, p.

275.
It is said that Abano caused to be painted the astronomical figures in the great hall of the palace at Padua.
One characteristic of mediaeval medicine is its union with theology, which is not remarkable, as the learning of the time was chiefly in the hands of the clergy.

One of the most popular works, the "Thesaurus Pauperum," was written by Petrus Hispanus, afterwards Pope John XXI.
We may judge of the pontifical practice from the page here reproduced, which probably includes, under the term "iliac passion," all varieties of appendicitis.
For our purpose two beacons illuminate the spirit of the thirteenth century in its outlook on man and nature.