| | PHILOSOPHICAL STUDIES by G. E. MOORE |
| | TRACTATUS LOGICO-PHILOSOPHICUS by L. WITTGENSTEIN |
| | PSYCHOLOGICAL TYPES* by C. G. JUNG |
| | SCIENTIFIC THOUGHT* by C. D. BROAD |
| | THE MEANING OF MEANING by C. K. OGDEN and I. A. RICHARDS |
| | PSYCHE by E. ROHDE |
| | INDIVIDUAL PSYCHOLOGY by ALFRED ADLER |
| | SPECULATIONS (Preface by Jacob Epstein) by T. E. HULME |
| | THE PHILOSOPHY OF 'AS IF' by H. VAIHINGER |
| | THE GROWTH OF THE MIND by K. KOFFKA |
| | THE MENTALITY OF APES by W. KOEHLER |
| | THE PSYCHOLOGY OF A MUSICAL PRODIGY by G. REVESZ |
| | PRINCIPLES OF LITERARY CRITICISM by I. A. RICHARDS |
| | METAPHYSICAL FOUNDATIONS OF SCIENCE by E. A. BURTT, Ph.D. |
| | PHYSIQUE AND CHARACTER* by ERNST KRETSCHMER |
| | PROBLEMS OF PERSONALITYin honour of MORTON PRINCE |
| | THE MIND AND ITS BODY* by CHARLES FOX |
| | LANGUAGE AND THOUGHT OF THE CHILD by J. PIAGET |
| | SEX AND REPRESSION IN SAVAGE SOCIETY* by B. MALINOWSKI |
| | COMPARATIVE PHILOSOPHY by P. MASSON-OURSEL |
| | THE SOCIAL INSECTS by W. MORTON WHEELER |
| | THEORETICAL BIOLOGY by J. VON UEXKUELL |
| | POSSIBILITY by SCOTT BUCHANAN |
| | THE SYMBOLIC PROCESS by J. F. MARKEY |
| | POLITICAL PLURALISM by K. C. HSIAO |
| | INTEGRATIVE PSYCHOLOGY* by W. M. MARSTON |
| | HISTORICAL INTRODUCTION TO MODERN PSYCHOLOGY by G. MURPHY |
| | COLOUR AND COLOUR THEORIES by CHRISTINE LADD-FRANKLIN |
| | BIOLOGICAL PRINCIPLES by J. H. WOODGER |
| | THE LAWS OF FEELING by F. PAULHAN |
| | THE MENTAL DEVELOPMENT OF THE CHILD by K. BÜHLER |
| | EIDETIC IMAGERY by E. R. JAHNSCH |
| | THE CONCENTRIC METHOD by M. LAIGNEL-LAVASTINE |
| | THE PHILOSOPHY OF THE UNCONSCIOUS by E. VON HARTMANN |
| | OUTLINES OF GREEK PHILOSOPHY by E. ZELLER |
| | INVENTION AND THE UNCONSCIOUS by J. M. MONTMASSON |
| | THE SOCIAL LIFE OF MONKEYS by S. ZUCKERMAN |
| | CONSTITUTION TYPES IN DELINQUENCY by W. A. WILLEMSE |
| | SCIENCES OF MAN IN THE MAKING by E. A. KIRKPATRICK |
| | THE GESTALT THEORY by BRUNO PETERMANN |
| | THE PSYCHOLOGY OF CONSCIOUSNESS by C. DALY KING |
| | THE SPIRIT OF LANGUAGE by K. VOSSLER |
| | THE NATURE OF LEARNING by GEORGE HUMPHREY |
| | THE INDIVIDUAL AND THE COMMUNITY by W. K. LIAO |
| | CRIME, LAW, AND SOCIAL SCIENCE by JEROME MICHAEL and M. J. ADLER |
| | DYNAMIC SOCIAL RESEARCH by J. J. HADER and E. C. LINDEMAN |
| | SPEECH DISORDERS by S. M. STINCHFIELD |
| | THE NATURE OF MATHEMATICS by MAX BLACK |
| | THE NEURAL BASES OF THOUGHT by GEORGE G. CAMPION G. ELLIOT SMITH |
| | PLATO's THEORY OF KNOWLEDGE by F. M. CORNFORD |
| | BENTHAM'S THEORY OF FICTIONS by C. K. OGDEN |
| | CHARLES PEIRCE'S EMPIRICISM by JUSTUS BUCHLER |
| | CONSCIOUS ORIENTATION by J. H. VAN DER HOOP |
| | DIALECTIC by MORTIMER J. ADLER |
| | THE DOCTRINE OF SIGNATURES by SCOTT BUCHANAN |
| | THE LIMITS OF SCIENCE by LEON CHWISTEK |
| | FIVE TYPES OF ETHICAL THEORY by C. D. BROAD |
| | LOGICAL SYNTAX OF LANGUAGE by RUDOLF CARNAP |
| | PRINCIPLES OF GESTALT PSYCHOLOGY by K. KOFFKA |
| | THE PSYCHOLOGY OF TIME by MARY STURT |
| | PLATO's THEORY OF EDUCATION by R. C. LODGE |
| | PLATO AND PARMENIDES by F. M. CORNFORD |
| | EMOTION AND INSANITY by S. THALBITZER |
| | THE MEASUREMENT OF EMOTION by W. WHATELY SMITH |
| | THE EFFECTS OF MUSIC by MAX SCHOEN |
| | BIOLOGICAL MEMORY by EUGENIO RIGNANO |
| | AN EXAMINATION OF LOGICAL POSITIVISM by JULIUS WHINBERG |
| | COLOUR-BLINDNES by MARY COLLINS |
| | IDEOLOGY AND UTOPIA by KARL MANNHEIM |
| | MENCIUS ON THE MIND by I. A. RICHARDS |
| | NATURE OF LAUGHTER by J. C. GREGORY |
| | THE CONDITIONS OF KNOWING by ANGUS SINCLAIR |
| | ETHICS AND THE HISTORY OF PHILOSOPHY* by C. D. BROAD |
| | BERTRAND RUSSELL'S CONSTRUCTION OF THE EXTERNAL WORLD by CHARLES A. JR. FRITZ |
| | A TREATISE ON INDUCTION AND PROBABILITY by GEORG HENRIK VON WRIGHT |
| | WHAT IS VALUE? by EVERETT W. HALL |