| Foreword | p. xi |
| Gases and Grains in the Coma | |
| Composition of the Volatile Material in Halley's Coma from In Situ Measurements | p. 3 |
| Remote Observations of the Composition of Cometary Volatiles | p. 19 |
| Cometary Deuterium | p. 33 |
| Comet Halley's Gas Composition and Extended Sources: Results from the Neutral Mass Spectrometer on Giotto | p. 45 |
| On the Existence of Distributed Sources in Comet Comae | p. 53 |
| The Distributed CO in Comet Halley | p. 69 |
| H[subscript 2]O Activity of Comet Hale-Bopp | p. 75 |
| Hale-Bopp and Its Sodium Tails | p. 83 |
| Rocky Cometary Particulates: Their Elemental, Isotopic and Mineralogical Ingredients | p. 91 |
| The Silicate Material in Comets | p. 99 |
| On the Organic Refractory Component of Cometary Dust | p. 109 |
| From Coma Abundances to Nucleus Composition | |
| From Coma Abundances to Nucleus Composition | p. 117 |
| On the Prediction of CO Outgassing from Comets Hale-Bopp and Wirtanen | p. 131 |
| On the Flux of Water and Minor Volatiles from the Surface of Comet Nuclei | p. 141 |
| Morphological Structure and Chemical Composition of Cometary Nuclei and Dust | p. 149 |
| Polarization of Light Scattered by Cometary Dust Particles: Observations and Tentative Interpretations | p. 163 |
| Changes in the Structure of Comet Nuclei due to Radioactive Heating | p. 169 |
| Origin of Cometary Materials | |
| Spectroscopy Between the Stars | p. 181 |
| The Composition of Interstellar Molecular Clouds | p. 203 |
| Evolution of Interstellar Ices | p. 219 |
| An ISO View on Interstellar and Cometary Ice Chemistry | p. 233 |
| Chemical and Physical Processing of Presolar Materials in the Solar Nebula and the Implications for Preservation of Presolar Materials in Comets | p. 239 |
| Rare Atoms, Molecules and Radicals in the Coma of P/Halley | p. 253 |
| Ion Irradiation and the Origin of Cometary Materials | p. 269 |
| Formation and Processing of Organics in the Early Solar System | p. 275 |
| Perspectives on the Comet-Asteroid-Meteorite Link | p. 289 |
| Critical Measurements for the Future | |
| Diversity of Comets: Formation Zones and Dynamical Paths | p. 301 |
| Rosetta Goes to Comet Wirtanen | p. 313 |
| Coma Composition and Evolution of Rosetta Target Comet 46P/Wirtanen | p. 321 |
| Missions to Comets and Asteroids | p. 329 |
| Characterization of Cosmic Materials in the Laboratory | p. 341 |
| Studies of Comets in the Ultraviolet: The Past and the Future | p. 355 |
| Critical Questions and Future Measurements-Collated Views of the Workshop Participants | p. 363 |
| Summary and Indexes | |
| Cometary Materials: Progress Toward Understanding the Composition in the Outer Solar Nebula | p. 373 |
| Subject Index | p. 391 |
| Comet Index | p. 398 |
| Molecule Indexes | p. 399 |
| Abbreviations | p. 408 |
| Author Index | p. 411 |
| List of Participants | p. 412 |
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