Descartes's Rules for the Direction of the Mind. By the late
Harold H. Joachim. Reconstructed from Notes taken by his pupils. Edited by
Errol E. Harris. Foreword by Sir David Ross. London: George Allen &
Unwin; New York: Macmillan, 1957.
Based upon the lecture notes of two of Joachim's former pupils, Professors Errol Harris and John Austin.