An attempt is made to present in an abbreviated form physical techniques and theoretical considerations which have been applied to solving a variety of physiological problems. Unfortunately, the coverage is neither inclusive or intensive. However, to some extent this is compensated by the references at the end of each chapter. Blood, circulation, respiration, muscle, peripheral nerve, and body heat exchanges are the areas covered. A final chapter on electronics is hardly adequate, considering the author's apparent knowledge of this field. There is a curious failure to maintain a level of clarity in the presentation; in some instances the author apparently feels that certain points are or should be understood by all his readers and in other instances certain obvious points are heavily belabored. However, this book should be available to workers in this field, primarily because it can become a valuable source book.