Roger Bacon's Philosophy Natur

A Critical Edition, with English Translation, Introduction, and Notes, of De multiplicatione specierum and De speculis comburentibus.

Translated, edited and introduced by David C Lindberg

"The name David Lindberg is certainly not new to the study of medieval science in general or of medieval optics in particular ...But without any doubt we have in hand now the man's masterwork, a truly first-rate book, done with consummate skill, complete in every detail...

"The translations into English are the best ever for the two Latin works. These are highly technical writings, so translations, especially by one who is a master in the special science involved, are truly helpful. Lindberg in his introduction admits that his craft is not only that of a translator, but of an interpreter as well...

"And to continue with what may seem an advertising blurb, the notes, which are appended at the end of explanations to the translations, are everything that one could expect from good historical study...

"This is truly a beautiful book, carefully wrought to the last detail. Even the printing is exquisite. The ultimate test, to my way of thinking, for this kind of book is bow parallel the Latin and English facing pages are. The English translation, in fact, is never behind the Latin text as one turns the page by more than half a line. That is perfection itself." -- George March, O.F.M. Speculum.