H II Regions and Related Topics Proceedings of a Symposium held at Mittelberg, Kleinwalsertal, Austria, January 13–17, 1975

Formation of molecules and dust.- Interpretation of the carbon recombination line.- The stellar population of dark clouds.- Observations of the H and C recombination lines toward NGC 2024.- The ionization of carbon in dusty H I Regions.- Recent interstellar molecular line work.- A review of star formation.- Recent theoretical work on star formation.- Cocoon stars.- The early stages of HII regions.- Model calculations of dusty strömgren spheres.- Infrared observations of HII regions at ? 40 ?m OF compact HII regions.- Compact H II regions, mainly radio observations.- Selective absorption by dust in H II regions.- Optical studies of galactic nebulae and of their exciting stars : The role of dust on the radius of the ionized hydrogen sphere.- Molecular Masers in HII Regions.- Masers associated with galactic H II regions.- On the nature of the SiO maser in the Kleinmann-Low nebula.- Observed parameters of 0 type stars.- Recent optical observations of some evolved HII regions.- Evolved H II regions.- Radio continuum spectra.- Some recent calculations and computer programs.- Surveys of the galactic plane at 5 GHz..- The galactic distribution of molecules (A CO survey).- Radio observations of hii regions in external galaxies.- Optical observations of H II regions in external galaxies.- Ionized gas in NGC 4151.- On the ionization conditions in the interarm gas of M 33.- Observations of the excited hydrogen radio line H56? in several H II regions.- Far infrared observations of H II Regions.- Interstellar isotopic ratios, stellar mass losses and galactic evolution.- "Review" of Orion A and Orion B.- A new radio map of the core of Orion A.- M 17.- DR21 and associated sources - A review.- The giant H 11 region w3.- The W 49 region.- The W 51 source complex.- CO/ Dust ratio in the ? Ophiuchi complex.- 40-350 Micron emission from dust in NGC2023.- The center of our galaxy.- The molecular cloud associated with SGR B2.- High resolutions maps of the galactic center at 2.2 and 10 ?.- H II Regions in the nuclei of external galaxies.- The distribution of HII regions in the large magellanic cloud.