The author states that this edition is practically a replica of the third, such a short time having elapsed between the two. The book remains, then, what it was: first, an excellent outline of the essentials of the structural anatomy and applied physiology of the central nervous system; secondly, a rather full summary of localizing diagnosis of lesions of cord, brain stem, cerebrum and cerebellum. Fully to cover the subject and at the same time make every part of the text clear to the tyro is impossible. The author's attempt is quite as successful as one could expect. The internist and surgeon generally will find what they are looking for, and the neurologist may here quickly pick up some strand dropped from memory's thread. The illustrations are well chosen and easily understood, and the index is adequate.