1. Heavy Ions and Nuclear Fission.- 1. Introduction.- 2. Heavy Ions and Low-Energy Nuclear Fission.- 2.1. Spontaneous Fission and Stability of Very Heavy Nuclei.- 2.2. Fission of Nuclei far off ? Stability.- 2.3. Unusual Fission Properties of Very Heavy Actinide Nuclei.- 2.4. Production of Low-Excited Compound Nuclei with Z ? 100 in Heavy-Ion-Induced Reactions.- 2.5. Prospects of Heavy-Ion-Induced Reactions in Fission Studies of Transfermium Nuclei.- 3. Fission of Highly Excited and Rotating Nuclei.- 3.1. Fission of Heated Rotating NucleiSaddle-Point Properties.- 3.2. Fission of Cold Nuclei with High Angular Momenta: Theoretical Predictions and Experimental Prospects.- 3.3. Isobaric Charge and Mass Distributions of Fragments from Fission of Highly Excited Nuclei.- 4. Nuclear Fission and Nucleus-Nucleus Collisions: Salient Examples of Large-Scale Collective Nuclear Motion.- 4.1. Fission and Nucleus-Nucleus Collisions: Unifying Features.- 4.2. Fission and Deep Inelastic Transfer Reactions: Distinguishing Features.- 4.3. Fission, Fast Fission, and Compound Nucleus Formation: Distinguishing Features.- 5. Conclusion.- Acknowledgments.- Note added in Proof.- References.- 2. Transuranium Nuclei.- 1. Introduction.- 1.1. General.- 1.2. History of Discovery.- 1.3. General References.- 2. Nuclear Properties of the Transuranium Elements.- 2.1. Nuclear Masses and Fission Barriers.- 2.2. Spontaneously Fissioning Isomers.- 2.3. Density of Levels Above the Fission Barrier.- 2.4. Effect of Angular Momentum upon Fission Barriers.- 2.5. Decay Properties of the Transuranium Nuclei.- 2.6. Ground-State Spontaneous Fission Systematics.- 2.7. Fission Fragment Energy and Yield Distributions.- 3. Chemical and Physical Properties of the Transuranium Elements.- 3.1. General Properties.- 3.2. Chromatography of the Transuranium Elements.- 3.3. Use of Transuranium Targets in Heavy-Ion Reaction Studies.- 3.4. Health and Safety Aspects of Transuranium Element Use.- 4. Identification of Transuraniul3c