The keynote to this fascinating study of cortical functions is expressed in the preface as follows: “The evidence is biologically adequate that mind (awareness) as we know it phenomenally is a function of a particular configuration of bodily organs.” No better statement could be made in an equal space from the structural point of view.

This book is an admirable review of the developmental history of the cortex and an attempt to correlate what this history shows with the functions of the mind as we see it in operation in man and in laboratory animals, particularly rats. Naturally such a study involves many hiatuses which are very properly filled up by hypotheses, which, however, have been arrived at as the result of the critical examination of the work and the thought of others as well as of the author's own.

Throughout the author preserves the viewpoint of the organism as a whole and has little patience with the. parallelistic theories or the doctrine of epiphenomenalism. Mind is a function, just as much as