Dr. Friis-Hansen gives a clear and concise discussion of our present knowledge of the field of body water and inorganic electrolyte composition in the fetus, infant, and child up to 16 years of age. There is a chapter devoted to a description of the methods used for the measurement of the volume and composition of total-body, extracellular, and intracellular water. One chapter is devoted to each of the compartments, with a detailed description in each of the author's own work on 93 subjects against the background of previous work done in the field. A chapter has also been devoted to changes in the compartments during growth and another to a summary of the book.
The work is well documented, and the list of references exceeds one hundred papers from the scientific literature. It would be of great value to those interested in the problems of fluid and electrolyte derangement in