"These volumes, in addition to providing us with fine critical editions of the various Latin versions of the medieval Aristotelian corpus, contain a wealth of information about many aspects of medieval intellectual history." (R. Forrai, in: Bryn Mawr Classical Review, 2011.02.11)
The edition of the Nicomachean Ethics is published in five volumes, the first of which contains a general preface, and the fifth the comprehensive indexes. The second volume contains two early fragmentary versions, which are presented as anonymous, but chronologically distinct: the so-called Ethica Vetus, consisting of only books II and III (1), and the Ethica Nova, comprising book I as well as some excerpts from the other books (2). The third and fourth volumes contain two closely related versions of the entire work, presented as the pure text and the revised version of the Liber Ethicorum by Robert Grosseteste (3). The revision is attributed, once more, to an unknown translator. However, recent research has identified the anonymous authors of the translations of the Nicomachean Ethics: both the two early versions are the work of Burgundio of Pisa, and the revisor of Grosseteste's Liber Ethicorum is William of Moerbeke. It has to be mentioned, moreover, that Burgundio's Greek model has been identified in the present-day Laurentianus gr. 81.18.