Frenkel's method of treating ataxia has been before the profession for some years, but its thorough understanding will be helped by the publication of this book. It is not exactly a translation, but an adaptation to the requirements of the medical practitioner. Frenkel's treatment, as is probably well known, is based on the sensory theory of ataxia and is practically a re-education of the organs in this particular point of view. The theory is thoroughly stated in the first part of the book; the latter part is given up to the details of treatment and here the descriptions and illustrations meet the requirements very thoroughly, so that anyone who has the patience and time could conduct the treatment to a considerable extent even without elaborate apparatus. The book should prove a useful one.