Spectral line formation theory is at the heart of astrophysical diagnostic. Our knowledge of abundances, in both stellar and interstellar contexts, comes almost enti rely from line analysis, as does a major fraction of our ability to model stellar atmospheres. As new facets of the universe become observable so the techniques of high reso lution spectroscopy are brought to bear, with great reward. Improved instruments, such as echelle spectrographs, employ ing detectors of high quantum efficiency, have revolutioned our ability to observe high quality line profiles, although until now this ability has been confined to the brightest stars. Fabry-Perot interferometers and their modern deriva tives are bringing new ranges of resolving power to studies of atomic and ionic interstellar lines, and of course radio techniques imply exceedingly high resolution for the cool interstellar medium of molecules and radicals. Telescopes in space are extending the spectral range of these types of observations. Already the Copernicus and IUE high resolution spectrographs have given us a tantalizing glimmer of what it will be like to obtain ultraviolet spectra with resolution and signal to noise ratio approaching those obtainable on the ground. Fairly soon Space Telescope will be producing high resolution spectroscopic data of unparal leled quali ty and distance range. As often happens in astro physics the challenge is now coming from the observers to the theorists to provide interpretational tools which are adequate to the state of the data."

High Resolution K-Band Images of the Galactic Centre.- Circumnuclear Populations in Nearby AGN.- The Ionizing Radiation Field in the Galactic Centre and the Nature of Liners.- The Photoionization Mechanism of LINERs: Stellar and Nonstellar.- The Starburst in the Wolf-Rayet Nucleus of the LINER NGC 6764.- Activity in LINER and Starburst Galaxies.- X-Ray Luminous IRAS Galaxies.- Parametric Relations of H II Galaxies.- Spectroscopic Evolutionary Synthesis Models of Wolf-Rayet Galaxies.- UIT Observations of NGC 1275.- The Starburst Model for the Optical Variability of the Seyfert 1 Galaxies NGC 4151 and NGC 5548.- Testing the Consistency of the Starburst Scenario for Active Galactic Nuclei.- The Ca II Triplet Lines in Starbust and Active Galactic Nuclei.- Where Are the Broad Lines in Seyfert 2S?.- Radio Emission in Active Galaxies: The Starburst Scenario.- The Host Galaxies of Nearby Seyfert 1 Nuclei.- X-Ray, UV and FIR Emission of Seyfert Galaxies.- Nitrogen and Helium Pollution in H II Galaxies and AGNs.- Star Formation and AGN.- The Nucleus of the Cygnus A Galaxy at High Resolution.- A Thick Reflection Nebula Illuminated by a Power Law.- Shock and Photoionization Models for Infrared Lines from Active Galactic Nuclei.- Radiation from Arbitrarily Shaped Objects in the Vicinity of Kerr Black Holes.- The Vertical Structure and Radiation Fields of Accretion Discs in the Centres of AGNs.- Is There a Precession-Type Movement in the Nucleus of NGC 4151?.- Emission Line Variability in NGC 4593 and NGC 5548.- Evidence for Anisotropie Radiation in 3C 227.- The ENLR of NGC 4151: Spatial Variations of the Line Ratios.- Testing the Anisotropy of the Central Engine from Extended Emission Line Regions.- The Polarization-Redshift Relation in Radio Galaxies.- Structure of Interacting Elliptical Radio Galaxies.- Activity in Colliding Galaxies.- List of Forthcoming Papers.- The 'KLUWER' LaTeX Style File: Instructions for Authors.