This book contains the proceedings of the sixth Eurographics Workshop on Vir­ tual Environments. The event took place from June 1 to June 2, 2000, in Am­ sterdam. We hope that readers will find these proceedings to be valuable, not only for virtual environment researchers, but also for practitioners developing or using virtual environment applications. We are glad to report that visibility of the workshop continues to expand and that virtual environment researchers and practitioners from allover the world are submitting papers. This year, 40 papers and case studies were submitted of which 20 were accepted. In addition, we are glad to see that the focus of the workshop is also expanding. We accepted 6 research papers on evaluation of virtual environments and there was a broad sampling of other topics. We would like to thank all those involved in organizing the symposium. In particular, thanks go to Mieke Brune who was in charge of the local organization. In addition, we want to thank the international program committee for their excellent, yet laborious, job in reviewing all submitted papers. The quality of the workshop is a reflection of the quality of the submitted papers and the quality of the reviewing process.

Preface. The Interstellar Medium in Galaxies -- An Overview; G.R. Knapp. The Cool Phase of the Interstellar Medium: Atomic Gas; E. Brinks. Molecular Clouds in Spiral Galaxies; J. Young. Interstellar Dust in Galaxies; M. Rowan-Robinson. The Effects of Environment on the Cool Phase of the Interstellar Medium in Galaxies; J.D.P. Kenney. The Diffuse Interstellar Medium; D.P. Cox. Cooling Flows and X-Ray Emission in Early-Type Galaxies; C.L. Sarazin. The Interstellar Medium in Active Galaxies; J.H. Krolik. Abundances in Extragalactic HII Regions; H.L. Dinerstein. Thermal Phases of the Interstellar Medium in Galaxies; M.C. Begelman. Large Scale Interstellar Gasdynamics in Disk Galaxies; S.A. Balbus. Gas During Mergers/Collisions; M. Noguchi. Magnetic Fields in Galaxies; R. Wielebinski. The Early ISM and Galaxy Formation; S.D.M. White. Gaseous Halos and Disks of Galaxies at Large Redshift; A.M. Wolfe. Large Scale Star Formation and the Interstellar Medium; R.C. Kennicutt. The Star-Gas Cycle in Galaxies; M.A. Dopita. Measuring Atomic Hydrogen Masses Using the 21-CM Line; J.M. Dickey. Mass Determinations from Far-Infrared Observations; B.T. Draine. Mass Determinations from CO Observations; P. Maloney. The M51 System: Review of the Interstellar Medium; R.J. Rand, R.P.J. Tilanus. Interstellar Medium in External Galaxies; J.P. Ostriker. Index.