Vienna 5498, 15th century, fols. 60r-70v, “Libellus in motu octave sphere.”
The Lucidator, 1310.
The fuller title, “Lucidator dubitabilium astronomie,” is used by Peter himself in citing the work in the Prohemium to his treatise on the motion of the eighth sphere.
BN 2598, following the Physonomia, fols. 99r-125v, “Quoniam astrologyce considerationis ambiguitates....” At fol. 125v the copyist, Petrus Collensis, whom Duhem characterizes as “scribe aussi maladroit qu’ignorant latiniste,” adds his name and a table of contents comprising ten questions. But the last four of these do not seem to be discussed in the text, of which the last three pages contain rather the beginning of the treatise on the motion of the eighth sphere. Therefore we have only the preface and first six Differentiae of the Lucidator. No copy of the Lucidator was known before Duhem, Études sur Léonard de Vinci, 1906-1909, I, 50-51, called attention to this MS.
Commentary on the Problems of Aristotle, 1310.
Expositio in librum problematum Aristotelis, Mantua 1475; Padua, 1482, 1501, 1520. The editio princeps of 1475 is not in the British Museum, although it has the other three editions, but copies of it exist in America (CFCB). The 1482 edition is said to have really been printed at Venice by Herbort. I have consulted the edition of 1482 in this country at the Columbia University Library. The Incipit in the 1482 edition reads, “Expositio praeclarissimi atque eximii artium ac medicinae doctoris Petri de Ebano Patavini in librum Problematum Aristotelis feliciter incipit.”
But the Explicit is given imperfectly in this 1482 edition and may better be repeated after a Venetian MS, S. Marco XII, 84, 14th century, fols. 1-139, “Explicit expositio succincta compilationis problematum Aristotelis quam Petrus edidit Padubanensis et a nullo prius interpretante; incepta quidem Parisius et laudabiliter Paduae terminata anno legis Christianorum millesimo trecentesimo decimo cum laude Dei altissimi cuius nomen sit benedictum per saecula, amen.” The Explicit as given in the first edition similarly stated that Peter composed the work partly in Paris and finished it in Padua in 1310. The Venetian MS just mentioned omits the text of Aristotle and gives only Peter’s commentary.
BN 6540. An illuminated MS with a picture at the beginning of a smooth-shaven man in gown and hood which is possibly meant for Peter. This MS would presumably be the autograph, were the MSS Catalogue right in dating it in 1310 A. D.; but I think that the date when the Explicit states that the work was completed has been incorrectly assumed to be the time when the MS was written. There seems to be nothing about the MS to indicate that it was written as early as 1310.
BN 6541, 14th century.
BN 6541A, 15th century.