NEW VOLUMES OF THE INTERNATIONAL SCIENTIFIC SERIES. VOL. LXXXIV. THE ELEMENTS OF HYPNOTISM; the Induction, the Phenomena, and the Physiology of Hypnosis. By RALPH HARRY VINCENT. With Seventeen Illustrations. Second Edition, Revised and Enlarged. VOL. LXXXV. SEISMOLOGY. By JOHN MILNE, F.R.S., F.G.S., &c., Author of 'Earthquakes.' With 53 Figures. VOL. LXXXVI. ON BUDS AND STIPULES. By Lord AVEBURY, F.R.S., D.C.L., LL.D. With 4 Coloured Plates and 340 Figures in the Text. VOL. LXXXVII. EVOLUTION BY ATROPHY, IN BIOLOGY AND SOCIOLOGY. By JEAN DEMOOR, JEAN MASSART, and EMILE VANDERVELDE. Translated by Mrs. CHALMERS MITCHELL. With 84 Figures. VOL. LXXXVIII. VARIATION IN ANIMALS AND PLANTS. By H. M. VERNON, M.A., M.D. LONDON: KEGAN PAUL, TRENCH, TRÜBNER & Co., LTD eral Library Cyclem versity of Wisconsin-Madison 3 State Strest dison, WI 53706-1494 DISEASES OF MEMORY AN ESSAY IN THE POSITIVE PSYCHOLOGY BY TH. RIBOT AUTHOR OF "HEREDITY: A PSYCHOLOGICAL STUDY OF ITS PHENOMENA, LAWS, CAUSES, FIFTH EDITION LONDON KEGAN PAUL, TRENCH, TRÜBNER & CO., LTD 1906 My purpose in this work is to provide a psychological monograph upon the diseases of memory, and, so far as the present state of our knowledge will permit, to derive from them certain deductions. The phenomena of memory have often been investigated, but never from a pathological stand-point. It has seemed to me that it might be profitable to consider the subject in this form. I have endeavored to limit myself to that, and have said nothing of the normal phases of memory, save so far as was necessary to make my meaning clear. I have cited many illustrations; this method, not in keeping with a purely literary study, is alone adapted to instruction. To write in a general way of the disorders of memory, without citing examples of each, would be, it seems to me, a |