Note 56 — INTRODUCTION.
Reading edition
Roger Bacon, a Franciscan friar of the thirteenth century, had a knowledge of mechanics and optics far in advance of his age: hence he was commonly regarded as a wizard. The brazen head which he manufactured was supposed to assist him in his necromantic feats; it is so introduced by Greene in his play of Friar Bacon and Friar Bungay (1594).