In the introduction the authors state that this book is written for the purpose of presenting, in a brief space, the actual technic of administering the various forms of therapeutic fever. In general it may be said that the monograph fulfils this aim. It describes the methods at present in vogue for producing fever by means of blankets, radiant energy, heated moist air, warm water sprays, hot baths, high frequency currents, electromagnetic induction, malaria, typhoid vaccine, relapsing fever, rat bite fever, sterile milk, antichancroid vaccine and sulfur in oil. Separate chapters are devoted to the more important of these procedures, namely to radiant energy, the hypertherm, high frequency currents and electromagnetic induction, malaria and, finally, typhoid vaccine. It can be readily understood that the attitudes of the four authors must necessarily differ. Therefore in the details of technic the subject matter is sometimes contradictory. However, these honest differences of opinion