1. Colored Centers in Ionic Crystals.- 2. Unstable Diatomic Molecule.- 3. Neutrino Oscillations.- 4. Colored Molecular Ions.- 5. Schrödinger's Cat.- 6. Direct Observation of Field Quantization.- 7. Decay of a Tritium Atom.- 8. The Hydrogen Atom in Crossed Fields.- 9. Exact Results for the Three-Body Problem.- 10. Analysis of a Stern-Gerlach Experiment.- 11. Measuring the Electron Magnetic Moment Anomaly.- 12. Neutron Interferometry.- 13. The Penning Trap.- 14. Quantum Cryptography.- 15. Hidden Variables and Bell's Inequalities.- 16. Hyperfine Structure in Electron Spin Resonance.- 17. The Spectrum of Positronium.- 18. Magnetic Excitons.- 19. Probing Matter with Positive Muons.- 20. Spectroscopic Measurement on a Neutron Beam.- 21. The Quantum Eraser.- 22. Molecular Lasers.- 23. Energy Loss by Ions in Matter.- 24. Properties of a Bose-Einstein Condensate.- 25. Quantum Reflection of Atoms from a Surface.- 26. Laser Cooling and Trapping.- 27. Quantum Motion in a Periodic Potential.- Author Index.