The Mind: By various authors. A Series of Lectures delivered in King's College, London, during the Lent Term, 1927. Edited by R. J. S. McDowall, D.Sc., M.B., F.R.C.P. (Ed.). With an Introduction by Ernest Barker, M.A., D.Litt., LL.D. (Longmans, Green & Co., Ltd., London, New York, Toronto, Calcutta, Bombay and Madras. Pp. 316. Price 8 s. 6 d.)

This volume contains a series of ten lectures delivered at King's College last year. They are grouped as follows: Biology, by Professor Julian Huxley; Physiology, by Professor R. J. S. McDowall; Psychology, by Dr. F. A. P. Aveling; Psychotherapy, by Dr. J. A. Hadfield; Physics, by Professor F. A. Lindemann; Philosophy, by the Rev. W. R. Matthews; Education, by Professor J. Dover Wilson; Aesthetic, by Mr. R. G. Collingwood; Anthropology, by Professor C. G. Seligmann; and Sociology, by Professor L. T. Hobhouse.

The basic problems of the mind are considered from the points of view of the contributions which can be made to them by the various ancillary sciences. The problem most often discussed is the old one of the relationship between mind and matter and it cannot be said that this has been furthered in any essential way in spite of the laudable attempts at clarification on the parts of Dr. Aveling and Professor Huxley.

The volume was very well worth publishing if only for two extremely brilliant essays, those by Mr. Collingwood and Professor Lindemann respectively. Both of these are highly original and suggestive. Mr. Collingwood draws an interesting contrast between æsthetics and psycho-analysis as founding together a science of the imagination from the normal and pathological standpoints respectively. He depicts the modern purist