chapter 26

. I. 610.

[2779] See Appendix IV for a fuller discussion of this matter.

[2780] See Appendix V.

[2781] See Appendix VI for further discussion of the date of his death.

[2782] See Appendix VII. John XXII was elected August 7, 1316.

[2783] Bibl. Naz. Turin H-II-16, 15th century, fol. 115v, “... temporis decano studii montispessulani....” The records of the University of Montpellier are unfortunately not well preserved for this period.

[2784] See Appendix VIII, “Peter and the Inquisition.”

[2785] The sum has become 400 ducats in Hoefer, _Histoire de la Chimie_, Paris, 1842, I, 135, and Pouchet (1853), pp. 532-3. Colle (1823), p. 17, questioned the story on the ground that Peter at the age of thirty-five or thirty-seven would be too young to charge such a fee, and for the better reason that the chronicler Filippo Villani tells the same tale of a Florentine physician. A prefatory note to the 1555 edition of the _De venenis_ states that when Peter taught at Bologna--which he probably did not do--he would not visit a patient outside of that town for less than fifty florins, so great was his reputation. Honorius IV therefore at first promised him a fee of one hundred florins but gave him one thousand when he recovered his health as a result of Peter’s ministrations.

[2786] Naudé (1625), p. 382.

[2787] See his treatise on the motion of the eighth sphere, _Distinctio II_, cap. 3, in Canon. Misc. 190, fol. 80r.

[2788] Diff. 67.

[2789] Diff. 64.

[2790] In Diff. 1 Peter had held that “the regulative power of the body resides in the brain,” and in Diff. 18 that “the brain is the seat of sensation and motion”:--“Virtus corporis regitiva habitaculum habet in cerebro” and “Cerebrum est fundamentum sensuum et motuum,” cited by Colle (1825) III, 144-5, in a list of what he considered Peter’s notable contributions to natural science.

[2791] _An prandium cena debeat esse maius?_

[2792] This can perhaps be traced back to a passage in Tiraboschi (1775) V, 147, “_Il primo, ch’io sappia, a commentare tra gl’Italiani le opere di Averroe, e a farne uso scrivendo, fu Pietro d’Abano che nel suo Conciliatore assai spesso lo vien citando or sotto il vero suo nome or sotto quello per eccellenza adattatogli di Comentatore._” Renan (see note 2) has already pointed out that Peter was not the first Italian to cite Averroes.

[2793] E. Renan. _Averroès et L’Averroïsme_, fifth edition, pp. 326-7. Yet Renan admits that Averroes was then regarded as an opponent of astrology. We shall see, however, that Peter cites Averroes for the association of seven spirits with the planets, a point not noted by Renan.

[2794] _Ibid._, p. 327.

[2795] Steinschneider (1905), pp. 58-9.

[2796] The paintings do not seem to have been executed until about 1400.

[2797] Muratori, _Antiquitates Italicae_, III, 374-5.

[2798] Naudé (1625), pp. 381-91.

[2799] _De rerum praenotione_, VII, 7, cited by Mazzuchelli (1741), p. xxvii.

[2800] Naudé (1625), pp. 380-1.

[2801] If this means Averroes, it will be noted that Peter does not sustain him against the Christian Faith.

[2802] This passage is from Diff. 135.

[2803] Diff. 101.

[2804] Diff. 113.

[2805] BN 2598, fols. 99-107.

[2806] Diff. 60.

[2807] Diff. 101.

[2808] Diff. 10; see also Diff. 113.

[2809] 104 and 105.

[2810] Diff. 168.

[2811] Diff. 64.

[2812] Diff. 23.

[2813] Canon. Misc. 190, fols. 78r-83r.

[2814] Diff. 2, BN 2598, fol. 109v.

[2815] Diff. 9 and 18.

[2816] Diff. 18.

[2817] “Complexio temperata.”

[2818] Diff. 9.

[2819] Peter thus is the precursor of recent writers in preferring a conjunction in Aries to one in Pisces as the sign of the Messiah: see

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