This well-written and carefully organized book presents discussions of the innumerable problems of instrumentation, technic, and dosimetry connected with the use of radioactive isotopes in the clinical laboratory. It deserves special praise for keeping in view, throughout the 14 chapters, its essential purpose of applying these isotopes in the treatment of human disease. Five chapters are especially devoted to the work done on hyperthyroidism, carcinoma of the thyroid, other tumors, and the lymphoid-macrophage diseases, including Hodgkin's disease and the acute and chronic leukemias. Because this work is so carefully done, it is valuable even though there have been many negative results. A concluding chapter, "Planning the Radioisotope Program in the Hospital," gives many practical suggestions.
Although there is some concern that the overenthusiastic or the inadequately trained may make mistakes, more persons are becoming aware of the meaning and need of controls in research on therapeutic methods and learning to