Uranium.- Preface.- 1 A History of Uranium Poisoning (1824–1942).- 2 Physical and Chemical Properties of Uranium.- 3 Animal Experiments.- 4 Data on Man.- 5 Protection Criteria.- 6 Environmental Monitoring and Personnel Protection in Uranium Processing.- 7 Uranium Mining Hazards.- Plutonium.- Preface.- 8 Biomedical Aspects of Plutonium (Discovery, Development, Projections).- 9 Chemical and Physical Properties of Plutonium.- 10 Distribution, Excretion and Effects of Plutonium as a Bone-Seeker.- 11 Plutonium in Soft Tissues with Emphasis on the Respiratory Tract.- 12 Maximum Permissible Body Burdens and Concentrations of Plutonium: Biological Basis and History of Development.- 13 Bioassay of Plutonium.- 14 Plutonium. Industrial Hygiene, Health Physics, and Related Aspects.- 15 Plutonium in the Environment.- Transplutonic Elements.- Preface.- 16 A History of the Transplutonic Elements.- 17 Chemical and Physical Properties of the Transplutonium Elements.- 18 Metabolism and Biological Effects of the Transplutonium Elements.- 19 Maximum Permissible Concentrations and Maximum Permissible Body Burdens for Transplutonic Elements.- 20 Bioassay of Transplutonium Elements.- 21 Medical Uses: Americium-241; Californium-252.- Author Index.