SIGLA 



Manuscripts cited throughmit " 



Z Oxoniensis Collegii Corporis Christi W.A. 2. 7. 



S Laurentianus Mediceus 81, 1. 



P Vaticanus graecus 1339. 



Y Vaticanus graecus 261. 



Manvscripts occasionally cited 



m Parisinus 1921. 



O*' Riccardianus 13. 



E Parisinus 1853. 



All Mss. readings are as reported by Bekker (by Bussemaker 



for E at 723 b 5 and 769 b 34, and for m at 723 b 5 



and 768 b 36)' except that 



* denotes corrected or additional reports of readings as 



given by Bitterauf (and twice only, for Z at 768 b 36 



and 786 a 3, as given by Susemihl). 



Readings and emendations 



Z Michael Scot's Latin translation (either its actual 



words, or the original Greek reading clearly 

 implied), from my own transcription. 



Gul. William of Moerbeke's Latin translation. 



Aldvis The Aldine editio princeps, Venice, 1497. 



vulg. The usual reading, as in the Berlin edition. 



Buss. Bussemaker, in tiie Didot edition. 



A.-W. Wimmer, in Aubert and Wimmer's edition. 



Sus. Susemihl. 



Btf. Bitterauf. 



Rackham Suggestions in private communications to me 

 by Mr. H. Rackham. 



Emendations and proposals by other scholars are attributed 



to them by name (for references see pp. xxvii f.). 



[ ] Denote words wrongly placed or incorporated into the 

 text. 



< > Denote (a) in the Greek text, words or parts of words 

 supplied conjecturally ; 



(b) in the English, either the translation of words sup- 

 plied in the Greek, or words required to complete the 

 sense. 



<• Z', Z', etc. = first hand, second hand, of Z, etc. 

 Ixxviii 



