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THE PSYCHOLOGY OF ATTENTION. By Professor Th. Ribot. Fourth edition. Pages, 121. Cloth, 75 cents. (3s. 6d.)

THE DISEASES OF PERSONALITY. By Prof. Th. Ribot. Third edition. Pages, 157. Cloth, 75 cents. (3s. 6d.)

THE DISEASES OF THE WILL. By Prof. Th. Ribot. Second edition. Pages, vi, 121. Cloth, 75 cents. (3s. 6d.)

THE EVOLUTION OF GENERAL IDEAS. By Prof. Th. Ribot. Pages, 231. Cloth, $1.25. (6s. 6d.)

THE PSYCHIC LIFE OF MICRO-ORGANISMS. By Dr. Alfred Binet. Pages, xii, 120. Cloth, 75 cents. (3s. 6d.)

ON DOUBLE CONSCIOUSNESS. By Dr. Alfred Binet. Third Edition. Pages, 93. Paper, 15 cents. (9d.)

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THE SOUL OF MAN. By Dr. Paul Carus. With 152 cuts and diagrams. Pages, xvi, 458. Cloth, $3.00. (15s.)

CONTRIBUTIONS TO THE ANALYSIS OF THE SENSATIONS. By Prof. Ernst Mach. Pages, xi, 208. Cuts, 37. Cloth, $1.25. (6s. 6d.)

ON MEMORY, AND THE SPECIFIC ENERGIES OF THE NERVOUS SYSTEM. By Ewald Hering. Second edition. Pages, 50. Paper, 15 cents, (9d.)

THREE INTRODUCTORY LECTURES ON THE SCIENCE OF THOUGHT. By Prof. F. Max Müller. Pages, vi, 128. Cloth, 75 cents. (3s. 6d.)

THE OPEN COURT PUBLISHING COMPANY
324 Dearborn St., Chicago, Ill.
London: Kegan Paul, Trench, Trübner & Company

THE EVOLUTION
OF
GENERAL IDEAS

BY
TH. RIBOT
PROFESSOR IN THE COLLÈGE DE FRANCE

AUTHORISED TRANSLATION FROM THE FRENCH
BY
FRANCES A. WELBY

CHICAGO
THE OPEN COURT PUBLISHING COMPANY
London: Kegan Paul, Trench, Trübner & Co., Ltd.
1899

THE EVOLUTIONOFGENERAL IDEAS