THE

'OPUS MAJUS' The Greater Work

ROGER BACON

EDITED, WITH

INTRODUCTION AND ANALYTICAL TABLE

JOHN HENRY BRIDGES

FELLOW OF THE ROYAL COLLEGE OF PHYSICIANS

SOMETIME FELLOW OF ORIEL COLLEGE

'To investigate in order to deduce in order to construct'

AUGUSTE COMTE

'All sciences are connected, and they support one another with mutual aids, like parts of the same whole, each of which performs its own work not only for itself but for the others'

ROGER BACON, Opus Tertium The Third Work

VOLUME I

WILLIAMS AND NORGATE

14 HENRIETTA STREET, COVENT GARDEN, LONDON

20 SOUTH FREDERICK STREET, EDINBURGH

AND 7 BROAD STREET, OXFORD

1900