OF

PHILOSOPHY AND PSYCHOLOGY

INCLUDING

MANY OF THE PRINCIPAL CONCEPTIONS OF ETHICS, LOGIC, AESTHETICS,
PHILOSOPHY OF RELIGION, MENTAL PATHOLOGY, ANTHROPOLOGY,
BIOLOGY, NEUROLOGY, PHYSIOLOGY, ECONOMICS, POLITICAL

AND SOCIAL PHILOSOPHY, PHILOLOGY, PHYSICAL
SCIENCE, AND EDUCATION

AND GIVING

A TERMINOLOGY IN ENGLISH, FRENCH, GERMAN, AND ITALIAN

WRITTEN BY MANY HANDS

AND EDITED BY

JAMES

MARK

BALDWIN

PH.D. (PRINCETON), Hon. D.Sc. (Oxon.), Hon. LL.D. (Glasgow, Coll. of So. Car., ETC.)

PROFESSOR OF PHILOSOPHY AND PSYCHOLOGY IN THE JOHNS HOPKINS UNIVERSITY
FORMERLY STUART PROFESSOR IN PRINCETON UNIVERSITY

WITH THE CO-OPERATION AND ASSISTANCE OF AN INTERNATIONAL
BOARD OF CONSULTING EDITORS.

IN THREE VOLUMES

WITH ILLUSTRATIONS AND EXTENSIVE BIBLIOGRAPHIES

VOL. III

PART II

New York

THE MACMILLAN COMPANY

London

MACMILLAN AND CO., LIMITED

Signatures.

(J. M. B.) Professor J. MARK BALDWIN, Princeton University.
CONSULTING EDITORS:

For English.

Professor JOHN DEWEY, Columbia University.
Professor WILLIAM JAMES, Harvard University.
Professor E. B. POULTON, Oxford University.
Professor ANDREW SETH PRINGLE-PATTISON, Edinburgh University.
Professor H. SIDGWICK, Cambridge University.
Professor G. F. STOUT, St. Andrews University.

For French.

(J. D.) (W. J.) (E. B. P.) (A. S. P. P.) (H. S.) (G. F. S.)

(Y. D.) (TH. F.) (P. J.) (L. M.)

(S. E.) (K. G.) (H. M.) (TH. Z.)

(E. M.)
(G. V.)

COLLABORATORS

EDITOR:

(A. C. A. Jr.) (B. B.) (J. D.) (H. N. G.) (G. E. M.) (A. S. P. P.) (J. R.) (E. T. S.) (R. H. S.) (J. M. B.)

(R. A.) (L. C.) (C. L. F.) (C. S. P.)

Professor YVES DELAGE, Sorbonne (Faculté des Sciences), Paris.
Professor TH. FLOURNOY, Geneva University.
Professor PIERRE JANET, Collège de France.

L. MARILLIER1, Lecturer, Sorbonne (Hautes-Études), Paris.
For German.

Professor S. EXNER, Vienna University.
Professor K. GROOS, University of Giessen.

Professor HUGO MÜNSTERBERG, Harvard University.
Professor TH. ZIEHEN, Berlin University.
For Italian.

ASSOCIATE EDITORS:

For Logic and Psychology.

(C. L. F.) Dr. C. LADD-FRANKLIN, Johns Hopkins University.
For Bibliography.
(H. C. W.) Professor H. C. WARREN, Princeton University.
EDITOR'S ASSISTANTS:
For Biography.
Professor G. A. TAWNEY, Beloit College.
For Philology.
Professor W. M. URBAN, Trinity College, Hartford.

CONTRIBUTORS:

Philosophy.

Professor A. C. ARMSTRONG, Jr., Wesleyan University.
Professor B. BOSANQUET, St. Andrews University.
Professor JOHN DEWEY, Columbia University.
Professor H. N. GARDINER, Smith College.

Mr. G. E. MOORE, Fellow of Trinity College, Cambridge.
Professor ANDREW SETH PRINGLE-PATTISON, Edinburgh University.
Professor JOSIAH ROYCE, Harvard University.

Professor E. T. SHANAHAN, Catholic University, Washington.
Dr. R. H. STETSON, Beloit College.
The Editor.

Professor E. MORSELLI, Genoa University.
Professor G. VILLA, University of Rome.

Logic.

Professor R. ADAMSON1, Glasgow University.
Professor L. COUTURAT, University of Toulouse.

Dr. C. LADD-FRANKLIN, Johns Hopkins University.
Dr. C. S. PEIRCE, Milford, Pike Co., Pennsylvania.

1 Deceased.

2 The names of contributors are given in this list under one subject only, although in many cases they have written in other subjects as well.