Table of Contents
List of abbreviations; Preface; 1. Optical obervations of nebulae B. T. Lynds; 2. Radio observations of H II regions R. L. Brown; 3. Quasars, Seyfert galaxies and active galactic nuclei D. E. Osterbrock; 4. Chemical abundances L. H. Aller; 5. The solar chromosphere R. W. Noyes and E. H. Avrett; 6. Spectroscopy of the solar corona J. B. Zirker; 7. Spectroscopy of circumstellar shells B. Zuckerman; 8. The gaseous galactic halo B. D. Savage; 9. Astrophysical shocks in diffuse gas C. F. McKee; 10. Coronal interstellar gas and supernova remnants R. A. McCray; 11. Diffuse interstellar clouds J. H. Black; 12. Laboratory astophysics: atomic spectroscopy W. H. Parkinson; References; Index.