This book is successful in the "attempt to bring basal metabolism out of the realm of pure physiology into the domain of clinical medicine." One is impressed by the clarity of exposition of theories, facts and methods, which have been the result of painstaking technical work and thought by many students of this branch of physiology. It is another of the many invaluable contributions by physiologists to clinical medicine. The author has had a very large experience in the clinical application of the tests, and is conservative and reliable in evaluating the results in the diagnosis, prognosis and treatment of disease. He sounds a warning, which is quoted below, because of its soundness and application to other methods of diagnosis now coming into vogue.
"In every disease there is a tendency to variation from the typical which occurs in certain individuals and there are few hard and fast rules in