Vienna 5327, 15th century, fols. 59r-60v, Operis de geomantia ad Tirasconensem anstitem prologus et caput primum.
Haskins (1911), p. 13, note 45, notes that the Laurentian MS has a different Incipit from BN 7453, but CU Magdalene 27 and Vienna 5508 agree with the latter Incipit.
[236] Haskins, p. 14.
[237] In the preface to his translation of el-Biruni’s commentary on al-Fargani he says, “Lest therefore, completely intent upon the footprints of the ancients, I seem to dissent from the moderns utterly ...”, (Ne itaque antiquorum vestigiis penitus insistens a modernis prorsus videar dissentire,—Haskins, p. 8). In the preface to the Pseudo-Aristotle on the 255 books of the Indians he speaks of Bishop Michael as exalted above moderns or contemporaries (ultra modernos vel coequevos,—Haskins, 10) in fame and love of learning, and later of “what can be fully explained by none of the moderns” (quod a nullo modernorum plenissime valet explicari—Haskins, p. 11). In the preface to Albumasar’s Book of Rains occurs the allusion to modern astrologers of the Gauls given below in the text.
[238] Haskins, p. 10.
[239] Ibid., p. 12, “... tue offero dignitati, ut quod potissimum sibi deesse moderni deflent astrologi gallorum posteritati tua benignitas largiatur.”
[240] Baldassare Boncompagni, Della Vita e delle Opere di Gherardo Cremonese traduttore del secolo duodecimo e di Gherardo da Sabbionetta Astronomo del secolo decimoterzo, Roma, 1851.
Giovanni Brambilla, Monografie di due illustri Cremonesi, Gherardo Toletano e Gherardo Patulo, Cremona, 1894. It largely repeats Boncompagni without acknowledgement.
K. Sudhoff, Die kurze Vita und das Verzeichnis der Arbeiten Gerhards von Cremona, von seinen Schülern und Studiengenossen kurz nach dem Tode des Meisters (1187) zu Toledo verabfasst, in Archiv f. Gesch. d. Medizin, herausg v. d. Puschmann-Stiftung an der Universität Leipzig, VIII, 73, Nov., 1914.
V. Rose, in Hermes, VIII (1874), 334.