In the first part of this book the principles underlying the use of physical agents and their effects are discussed and much valuable information of a theoretical and practical character is given. The second part relates to the special use of physical agents in the field of otolaryngology. Some of the material is not relevant to the subject. Some of the claims made for the methods employed are open to question. Almost any accepted treatment for acute rhinitis, for instance, is likely to give good results, because the course of this illness is usually short and self limited. There are some statements to which exception may be taken. For example, not every one will agree, as stated on page 271, that "boils in the external auditory canal are usually associated with some metabolic disease, especially diabetes." Apart from these minor exceptions there is much that is valuable and applicable. Physical therapeutic methods are being properly assessed and are of increasing aid to the practitioner. The interested specialist may read this work with much profit.