In the centennial year, 1985-86, of Harlow Shapley's birth, the study of globular clusters was no less important to the development of astronomy than in 1915, when Shapley first noted their concentration on the sky. By 1917 Shapley had used the properties of the system of globular clusters to complete the Copernican revolution and locate the solar system, and its Earth-bound observers, far from the center of the Galaxy and the globular cluster distribution. Seven decades later, in the year of these proceedings, globular cluster research and the study of the system of globular clusters in our own and distant galaxies is undergoing a renaissance of activity. The introduction of new observational tools, particularly CCD imagers and digital spectrographs, as well as powerful theoretical methods have transformed the study of globular clusters into one of the main line areas of modern astrophysics. Thus it seemed particularly appropriate to one of us, when considering how the Harvard College Observatory might mark the Shapley centennial, to propose and plan for an IAU Symposium on Globular Cluster Systems in Galaxies. Planning for the Shapley Symposium, as it came to be called, was even more drawn out than the preparation of this volume. The Symposium was originally proposed to the IAU Secretariat in time for it to be held in August, 1985, so that it might occur in the centennial (calendar) year.

Inhalt

I Review Papers on Harlow Shapley.- Shapley's Debate.- Shapley's Era.- Shapley's Impact.- II Review Papers on Globular Clusters in the Milky Way.- An Overview of the Globular Cluster System of the Galaxy.- Kinematics of the Galactic Globular Cluster System.- Globular Cluster Color-Magnitude Diagrams.- The Overall Abundances of Globular Clusters.- The Chemical Inhomogeneity within Globular Clusters.- Ages of the Galactic Globular Clusters.- Globular Cluster Luminosity Functions.- Globular Clusters and Field Halo Stars.- III: Review Papers on Globular Clusters in Nearby Galaxies.- Old Globular Clusters in the Magellanic Clouds.- Intermediate-Age Magellanic Cloud Globular Clusters.- M 31 Cluster System.- The Clusters of M 33.- The NGC 5128 Cluster System.- Dwarf Spheroidal Galaxies and Globular Clusters.- An Overview of Globular Systems in Distant Galaxies.- The M 87 Globular Cluster System.- IV Review Papers on Evolution of Globular Clusters.- The Evolution of the System of Globular Clusters.- Tidal Heating of Globular Clusters.- Cluster Swapping.- Galaxy Formation and Cluster Formation.- The Origin of Globular Clusters.- Surface Photometry of Globular Clusters.- X-Ray Binaries and Cluster Evolution.- Precollapse Evolution of Globular Clusters.- After Core Collapse, What?.- Disolution of Star Clusters in Galaxies.- V Review Papers on Globular Clusters as Tracers and HST.- Interstellar Matter in Globular Clusters.- Globular Clusters as Tracers of the Galaxy Mass Distribution.- Globular Clusters and Primordial Composition.- Stellar Evolution in Globular Clusters and HST.- Simulations of HST Observations of Globular Clusters.- VI Review Papers Summary.- Globular Cluster Systems in Galaxies: Main Trends and Future Directions.- VII Poster Papers on Harlow Shapley and Globular Clusters in the Milky Way.- Harlow Shapley: A View from the Harvard Archives.- Harlow Shapley and the University of Missouri.- Harlow Shapley and Red Giant Stars.- The Development of a Red-Giant Branch in Low to Intermediate Mass Stars.- New Main-Sequence Luminosity Functions for Globular Clusters.- Global Versus Local Mass Functions.- A New Survey of Globular Cluster Structural and Luminosity Parameters.- Axial Ratios and Orientations for 100 Galactic Globular Star Clusters.- Abundances in Stars in Globular Clusters from Palomar Ccd Spectra.- The Metal Abundance of Metal-Rich Globular Clusters.- The Composition of Warm Giants in M 71 and M 5.- The Integrated Spectra of Metal-Rich Galactic Globular Clusters: A Two-Parameter Family.- IUE Investigations at the Core of M 79.- One-Micron Photometry of Omega Centauri Giants.- On the Bimodal Distributions of Horizontal Branches.- Bimodal Distributions on the Horizontal Branch.- Horizontal-Branch Stars with Strong He Lines.- Spectra of BHB Stars in M 3, M 13 and M 92.- Four-Color Measures of BHB Stars in M 4, M 13 and M 55.- Globular Clusters in the Vilnius Photometric System.- The Metallicity Distribution Function of Halo Dwarfs and Globular Clusters.- The Similarity of the Halo Field K Giant Population with the Globular Cluster System of Our Galaxy.- Apparent Rotation of the Galactic Globular Cluster System.- Astrometric Distances of Globular Clusters.- Absolute Proper Motions and Space Motions of Globular Clusters.- A Search for Obscured Globular Clusters.- On the Color Excesses of Globular Clusters.- First Poster Paper Discussion.- VIII Poster Papers on Cluster Systems in Nearby Galaxies.- A Search for Globular Cluster Candidates in NGC 2403.- Search for Globular Clusters in the Nearby Galaxies II. NGC 3109.- A Complete Sample of Globular Clusters in NGC 5128.- Astronomical Catalogues in the M 31 Region.- The Blue Star Clusters of M 31.- Spatial Distribution of Globular Clusters in M 31.- Formation of Populous Clusters from Metal-Poor Gas in the Magellanic Clouds.- The Development of the Red Giant Branch in Magellanic Cloud Clusters: Progress Report.- The Age Distribution and Age-Metallicity Relation of Star Clusters in a Northern Region of the LMC.- Photometric Models for Globular Clusters From Population Synthesis.- Bvri Photometry of Star Clusters in the Bok Region of the Large Magellanic Cloud.- Ages and Metal Abundances of Star Clusters in the Magellanic Clouds.- Internal Dynamics of Magellanic Cloud Clusters.- Do Binary Clusters Exist in the Large Magellanic Cloud?.- Ellipticities of Globular Clusters in the Andromeda Galaxy.- Observed Variations in the Density Profiles of Star Clusters in the LMC.- Ratio of Early to Late Type Stars in SMC Clusters.- The SMC Cluster Lindsay 11.- Abundances of Young LMC Clusters.- The Abundance of the LMC Globular Cluster NGC 2213.- Deep Photometry of the Draco Dwarf Spheroidal Galaxy.- CCD Photometry in the Core of the Fornax Dwarf Galaxy.- A Candidate for the Recovered Nova of 1938 in the Globular Cluster M 14.- The Absolute Luminosity of RR Lyrae Variables.- The Distances to RR Lyrae Variables.- Double-Mode RR Lyrae Stars in IC 4499.- Short-Period Variables in Globular Clusters of Moderate Metallicity.- Second Poster Paper Discussion.- IX: Poster Papers on Cluster Systems in Distant Galaxies. Deep Photometry and CM Diagrams.- The Nuclei of Nucleated Dwarf Elliptical Galaxies - Are they Globular Clusters?.- The Globular Cluster System of M 87.- The Core of the M 87 Globular Cluster System.- U Photometry of Globular Clusters in the Central Region of M 87.- Globular Clusters Detected uin the Coma Cluster'S Central Giant Galaxy NGC 4874.- Globular Clusters in Different Types of Spiral Galaxies.- Globular Clusters in Lenticular Galaxies: NCG 3115.- Globular Clusters as Extragalactic Distance Indicators: Maximum Likelihood Methods.- Photometry of Faint Stars in Globular Clusters Using the Six Meter Telescope.- High Precision Photometry of 10,000 Stars in M 3.- Deep CCD Photometry in M 5.- Photographic Photometry of 4500 Stars in M 30.- An Automated HR Diagram for NGC 6809 (M 55).- Deep CCD Photometry in Omega Centauri and NGC 3201.- Deep CCD Photometry of OMEGA Centauri.- The Ages of Globular Clusters Derived from BVRI CCD Photometry.- Turnoffs and Ages of Globular Clusters.- The Dynamics of Globular Clusters in High Eccentricity Orbits.- Mass Distributions of Galaxies with Globular Cluster Systems.- The Dynamics of Globular Cluster Systems.- Third Poster Paper Discussion.- X Poster Papers on Formation and Evolution of Globular Clusters.- A Multicolor CCD Survey of Southern Globular Clusters.- The Structure of Collapsed Cluster Cores.- Radial Velocity Study of NGC 6712.- A Survey of Globular …