The present fifth conference in this series - counting the 1956 conference in Mainz the same way as the "zeroth" symphonies of Beethoven and Bruckner - was held in conjunction with the centennial of the "Convention du Metre" which was signed May 20, 1875 in Paris, Because of this occasion, an extensive honorary committee was appointed: Honorary Committee; Chairman A. Kastler R. C. Barber(M) W. H. Johnson(M) K. Ogata(M) u. Bonse E. R. Cohen(M) Y. Sakurai A. H. Cook J. H. Sanders(M) P, Dean H. H. Staub(M) R. D, Deslattes U. Stille(M) J. V. Dunworth J, Terrien(M) V. I. Goldanskii(M) M. A. Thompson P. Grivet A. H. Wapstra(M) The members (marked M) of the Commission on Atomic Masses and Fundamental Constants of the International Union of Pure and Applied Physics belonged ex officio to this Committee, The Organizing Committee; chairman A, Horsfield H. Capptuller J . E. Faller J . L. Hall B. W. Petley B. N. Taylor was helped by the following two committees: v vi PREFACE Program Committee; chairman A. H. Wapstra c. Audoin W. H. Johnson W. Benenson R. Klapisch E. R. Cohen A. Rytz P. Giacomo J. H. Sanders Local Committee; chairman P. Grivet c. Audoin R. Klapisch N. Elnekave Y. Le Gallic s. Gerstenkorn P. Petit F. Hartmann M.

1 The Fundamental Constants and Metrology.- The Measurement of Fundamental Constants (Metrology) and Its Effect on Scientific and Technical Progress.- Constantes Physiques et Métrologie.- 2 Gamma rays.- Gamma-Ray Energies for Calibration of Ge(Li) spectrometers.- Primary Standards for Gamma Energy Determinations.- Precision Measurements of Relative ?-Ray Energies with a Curved Crystal Diffractometer.- Visible to Gamma-Ray Wavelength Ratio.- Determination of Proton Binding Energies for 89Y, 90Zr, 91Nb and 93Tc from (p, ?) Reaction Q-values.- A New Method for Measurement of Proton Beam Energies.- 3 Alpha and Beta Decays.- Superallowed ?-decay : From Nuclear Masses to the Z Vector Boson.- Masses of TZ = +5/2 Nuclei in the s-d Shell from ?-Decay Measurements.- Mass Differences of Proton-Rich Atoms near A=116 and A=190 Unisor Consortium.- Total ?-Decay Energies of Nuclei Far from Stability: Evidence for the Wigner Symmetry Energy in Rb and Kr Masses.- Total Beta Decay Energies of Neutron-Rich Fission Products.- Far Beta-Unstable Alpha-Particle Emitting Nuclei.- 4 Nuclear Reactions.- Precision Measurement of Q-values by Means of the Munich Time-of-flight System and the Q3D-Spectrograph.- Measurements of Nuclear Masses Far from Stability.- Some (p,n) and (?,n) Reaction Energies Relevant to Superallowed Beta Decay.- Accurate Q-value Measurements and Masses in the Iron Region.- Precision Energy Measurements with the MSU cyclotron.- New Tests of the Isobaric Multiplet Mass Equation.- Isobaric Mass Quartets.- 5 Mass Spectrometry.- This part is dedicated to the memory of L.G. Smith, 1912¿1972. The Mass Spectroscopic Work of L.G. Smith.- L.G. Smith¿s Precision RF Mass Spectrometer Transferred from Princeton to Delft.- Present Status of the Program of Atomic Mass Determinations at the University of Manitoba.- Recent Doublet Results and Measurement Technique Development at the University of Minnesota.- Double Focussing Mass Spectrometers of Second Order.- On a Two-Stage Double-Focussing Mass Spectroscope under Construction at Osaka University.- Atomic Mass Measurement Using Time-of-Flight Mass Spectroscopy.- Mass Spectrometry of Unstable Nuclei.- The Activities of the II Physical Institute of the University of Giesen in the Investigation of Short-Lived Heavy Nuclei.- Attempts to Obtain Highly Resolved Mass Spectra of Short-Lived Fission Products with the Lohengrin Separator.- 6 Theory of Nuclear Binding Energies.- The Mass Determination in Relation to Nuclear Structure and to the Theory of Nuclear Matter.- Self-Consistent Calculations of Nuclear Total Binding Energies.- Shell and Pairing Effects in Spherical Nuclei Close to the Nucleon Drip Lines.- Hartree-Fock Calculation of Nuclear Binding Energy of Sodium Isotopes.- Nuclear Mass Systematics and Exotic Nuclei.- The Validity of the Strutinsky Method for the Determination of Nuclear Masses.- Nucleon Correlation Effects in Mass Systematics.- 7 Atomic Mass Formulae.- Interpolation Mass Formulae.- Nuclidic Mass Relationships and Mass Equations.- The Liquid Drop Mass Formula as a Shell Model Average.- Magic Neutron-Rich Nuclei and a New Semi-Empirical Shell-Correction Term.- Structure of Nuclear Energy Surface and the Atomic Mass Formula.- Atomic Mass Extrapolations.- 8 Time and Frequency Measurements and the Speed of Light.- Time and Frequency.- Applications of Frequency Standards.- Stabilized Lasers and the Speed of Light.- The Realization of the Second.- Stability and Reproducibility of He-Ne Lasers Stabilized by Saturated Absorption in Iodine.- Performance and Limitations of Iodine Stabilized Lasers.- Reproducibility of Methane- and Iodine-Stabilized Optical Frequency Standards.- Some Experimental Factors Affecting the Reproducibility and Stability of Methane-Stabilized Helium-Neon Lasers.- Molecular Beam Stabilized Argon Laser.- Frequency Stabilization of an Ar+ Laser with Molecular Iodine.- Saturated-Absorption-Stabilized N2O Laser for New Frequency Standards.- Optically Pumped Far-Infrared Laser for Infrared Frequency Measurements.- Two-Photon Lasers.- Light-Shifts Precision Measurements of the O-O Transition in a 133Cs Gas Cell.- 9 Wavelength Comparison.- Comparaison de Longueurs d¿Onde à l¿Aide d¿un Interféromètre de Michelson.- Wavelength Intercomparison of Laser Radiations Using Servo-Lock Interferometry.- A Field Compensated Interferometer for Wavelength Comparison.- Determination of New Wavelength Standards in the Infrared by Vacuum Fourier Spectroscopy.- Preliminary Wavelength Measurements of a 127I2 Stabilized Laser at IMGC.- Wavelength Measurements in the UV and Vacuum UV.- 10 The Josephson Effects and 2e/h.- Applications of the Josephson Effect.- A Brief Review of the A C Josephson Effect Determination of 2e/h.- Determination of 2e/h at the BIPM.- 2e/h Determination by Josephson Effect in ETL.- Etape d¿une Détermination absolue du coefficient 2e/h au LCIE.- Cryogenic Voltage Standard at PTB.- 11 Magnetic Moments.- Review of the Measurement of ?p/?n.- Magnetic Moment of the Proton in H2O in Units of the Bohr Magneton.- A Progress Report on the (g-2) Resonance Experiments.- New Electron and Positron (g-2) Experiments at the University of Michigan.- New Measurement of (g-2) of the Muon.- Status of Anomalous Magnetic Moment Calculations for Electron and Muon.- A New Mass-Spectrometric Method for the Measurement of ?p¿.- Experiment with Magnetically Isolated Calculable Solenoid for ?p¿ Determination.- Determination of the Gyromagnetic Ratio of the Proton ?p¿.- A Measurement of the Gyromagnetic Ratio of the Proton by the Strong Field Method.- 12 Miscellaneous Constants.- Recent Estimates of the Avogadro Constant.- Re-evaluation of the Rydberg Constant.- Rydberg Constant Measurement Using CW Dye Laser and H* Atomic Beam.- Fast Beam Measurement of Hydrogen Fine Structure.- A New Determination of the Faraday by Means of the Silver Coulometer.- A Value for the Faraday Based on a High-Precision Coulometric Titration of 4-Aminopyridine.- Initial Results from a New Measurement of the Newtonian Gravitational Constant.- Constants of Electric and Magnetic Polarizibilities of Proton.- A New Determination of the Gas Constant by an Acoustic Technique.- A Determination of the Density and Dilatation of Pure Water of Known Isotopic Composition.- 13 Relativity, Time Variation of the Constants, and Philosophical Considerations.- Recent Solar Oblateness Observations : Data, Interpretation and Significance for Experimental Relativity.- A Laboratory Experiment to Measure the Time Variation of Newton¿s Gravitational Constant.- An Experimental Limit on the Time Variation of the Fine Structure Constant.- Bound on the Secular Variation of the Gravitational Interaction.- Understanding the Fundamental Constants.- 14 Evaluation.- Present Status of Atomic Masses.- Present Status of the Fundamental Constants.- 15 Conference Summary.- Summary of the Conference.