Contents -- Preface -- Vernon Hughes and the Early Years of Molecular Beam Resonance Norman F. Ramsey, Higgins Professor of Physics Emeritus, Harvard University -- References -- The 46 Years of Muon g-2 Francis Farley, Visiting Senior Research Scientist, Yale University -- References -- Muonium - The Early Experiments Richard Prepost, Professor of Physics, University of Wisconsin -- 1. Introduction -- 2. Early Background and History -- 3. Early Experiments -- 4. First Observation of Muonium Precession -- 5. First Measurement of v -- 6. The First Microwave Experiment -- 7. The Final Microwave Experiments at Nevis -- 8. Muonium in Semiconductors -- 9. The naming of muonium -- 10. Acknowledgements -- References -- Muonium Lifetime and Heavy Quark Decays (Lessons Learned from Muonium) William J. Marciano, Senior Scientist, Brookhaven National Laboratory -- 1. Introduction -- 2. The Muon Lifetime and Fermi Constant G -- 3. Muonium ( +e-) Decay -- 4. - Decay in Atomic Orbit -- 5. b-Hadron Lifetimes -- 6. The K+ + 0e+ve vs K0 + -e+ve Decay Puzzle -- 7. Concluding Remarks -- References -- Recent Developments of the Theory of Muon and Electron g-2 Toichiro Kinoshita, G. Smith Professor of Physics Emeritus, Cornell University -- 1. Introduction -- 2. Evaluation of A2(8)(m /m ) -- 3. Improving A2(10) (m /m ) -- 4. Electron g - 2 -- 5. New values of -- Acknowledgment -- References -- Vernon Hughes and the Quest for the Proton's Spin Robert L. Jaffe, Morningstar Professor of Physics, Massachusetts Institute of Technology -- 1. Introduction -- 2. What is the issue and why should we care? -- 3. Why the nucleon's spin? -- 4. Testing the spin sum rules -- 5. So what is the sum rule for the spin of the proton? -- References -- The Spin Structure of the Nucleon: A Hughes Legacy Gordon D. Cates, Professor of Physics, University of Virginia -- 1. Introduction.

2. The early SLAG program -- 3. The CERN program -- 3.1. The EMC spin-structure experiment -- 3.2. The Spin Muon Collaboration (SMC) -- 4. The second generation SLAC nucleon spin-structure program -- 4.1. SLAC El42 -- 5. SLAC E154 -- 6. Next-to-leading order perturbative QCD analyses -- 7. A large and growing legacy -- References -- Muon g-2: The Last Word? Ernst Sichtermann, Division Fellow, Lawrence Berkeley National Laboratory -- 1. Introduction -- 2. Experiment -- 3. Data Analysis -- 3.1. The magnetic field frequency -- 3.2. The muon spin precession frequency -- 4. Results and Discussion -- 4.1. Experiment -- 4.2. Theory -- 4.3. Comparison -- 5. Concluding remarks -- 6. Acknowledgements -- References -- Past, Present and Future of Muonium Klaus P. Jungmann, Professor of Physics, University of Groningen -- 1. Muonium - The Atom discovered by Vernon Hughes -- 2. Muonium Formation -- 3. Muonium Ground State Hyperfine Structure -- 3.1. The Last LAMPF Experiment -- 3.2. Search for CPT violation -- 3.3. The Fine Structure Constant -- 3.4. Future Possibilities for vHFS -- 4. Muonium 1s-2s Two-photon Spectroscopy -- 4.1. The recent RAL Experiment -- 4.2. Slow Muons from Muonium Ionization -- 4.3. Future Muonium Laser Spectroscopy -- 5. Muonium and the Muon Magnetic Anomaly -- 6. Muonium- Antimuonium Conversion -- 6.1. The latest M-M Experiment at PSI -- 6.2. Future Possibilities for M-M Experiments -- 7. Future Possibilities for Fundamental Interaction Research with Muons -- 8. Conclusions -- 9. Final Remarks -- References -- Parity Nonconservation in Electron-Electron Scattering Emlyn W. Hughes, Professor of Physics, California Institute of Technology -- 1. Introduction -- SLAC Experiment El22 -- SLAC Experiment El58 -- References -- Exploring the Nucleon Spin: The Next Decade Abhay L. Deshpande, RIKEN Fellow, Brookhaven National Laboratory.

Vernon W. Hughes and the Polarized e-p Collider -- The electron ion collider at BNL: eRHIC -- The Scientific Fronters of eRHIC at BNL: -- Nucleon Spin Studies in the Next Decade -- Polarized Gluon Distribution G(x,Q2) -- Polarized Gluon Distribution from Photon Gluon Fusion Process: -- Photo-production -- Photo-production and Drell-Hern-Gerasimov Spin Sum Rule -- Flavor Decomposition of Quark Spin Structure -- Parity Violating Structure Function gs -- Hard Exclusive Deeply Inelastic Processes & Hadron Structure -- The status of the eRHIC project & prospects: -- References -- Remarks at the Symposium Banquet Honoring Vernon Hughes D. Allan Brornley, Presiding, Sterling Professor of the Sciences, Yale University -- Banquet Talk in Honor of Vernon W. Hughes Gisbert zu Putlitz, Professor of Physics, University of Heidelberg -- Tests of CPT for Muons Vernon W. Hughes, Yale University -- Acknowledgment -- References -- Vernon Willard Hughes, 1921-2003 (A Biographical Memoir) Robert K. Adair, Professor of Physics, Yale University -- SELECTED BIBLIOGRAPHY -- Publication List of Vernon W. Hughes.