This volume contains the first critical edition and a complete English translation of the well-known correspondence conducted by the fourteenth-century 'sceptic' author, Nicholas of Autrecourt, with Bernard of Arezzo and a Master Giles. In the Introduction the extant manuscripts are analysed and the different positions of Nicholas, Bernard and Giles are discussed; the purport of Giles' reply to Nicholas is, contrary to common opinion, identified as a defence of Aristotelianism rather than of Bernard's 'sceptic' views. Two appendices contain the first critical edition of the records of the...