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Bacon, Roger · 1932

The "First Philosophy" is the historical term used by Aristotle and medieval scholars to refer to the field of Metaphysics.
O.F.M. refers to the Order of Friars Minor, the Franciscan religious order to which Roger Bacon belonged.
original: "e cod. vetustissimis," referring to the oldest surviving codices or handwritten books used as sources for this edition.