Section 1: Introduction.- Objectives of the Workshop.- Photons, Molecules and Solids in Interstellar and Circumstellar Regions: an Introduction for Non-Astronomers.- Section 2: Physics and Chemistry of Graphite, Carbonaceous Grains and Clusters.- On the Electronic Structure of Graphite.- Various Kinds of Solid Carbon: Structure and Optical Properties.- Gas/Carbonaceous Surface Interactions.- VUV to FIR Laboratory Observations on Submicron Amorphous Carbon Particles.- Spectroscopy of Matrix-Isolated Carbon Molecules in the UV, VIS, and IR Spectral Range.- Remarkable Periodicities in the Mass Spectra of Carbon Aggregates.- Reactions of Thermal Hydrogen Atoms and Energetic Hydrogen and Oxygen Ions with Pyrolytic Graphite.- Section 3: Physics and Chemistry of Polycyclic Aromatic Hydrocarbons (Pah's).- Photophysics, Electronic Spectroscopy and Relaxation of Molecular Ions and Radicals with Special Reference to Polycyclic Aromatic Hydrocarbons.- Fluorescence Lineshapes of Polyatomic Molecules - Spectroscopy without Eigenstates.- Structure and Chemistry of PAH's.- Synthesis and Spectroscopy of Tribenzo(a, g, m)Coronene, a New, Exceptionally Stable, Fully Benzenoid PAH.- Hot Carbon Atoms as a Potential Source for Polycyclic Aromatic Hydrocarbons.- Section 4: Carbonaceous Materials and Astrophysics.- Carbon Components of Interstellar Dust.- Molecular Origin of the 216 nm Interstellar Hump.- Chains and Grains in Interstellar Space.- Mid Infrared Excess and Ultraviolet Extinction.- High Spectral Resolution Observation of the 3.3 ?m Emission Band and Comparison with Laboratory-Synthesized Quenched Carbonaceous Composite (QCC).- DISCUSSION I: Carbon in the Interstellar Medium.- Section 5: Polycyclic Aromatic Hydrocarbons and Astrophysics.- Identification of PAH's inAstronomical IR Spectra - Implications.- The IR Emission Features: Emission from PAH Molecules and Amorphous Carbon Particles.- The Hydrogen Coverage of Interstellar PAH's.- New Observations of Infrared Astronomical Bands: IRAS-LRS and 3 ?rn Ground-Based Spectra.- Distribution of PAH in the Galaxy Derived from the IRAS Data.- Infrared Features in Extragalactic Objects.- Very Small Grains in Spiral Galaxies.- IRAS Observations of a "Typical" Dark Cloud.- Coal Tar as a Laboratory Analog of an Interstellar PAH Mixture.- Hydrogenated Amorphous Carbon (a:C-H) in the Planetary Nebula NGC 7027.- Visual and Infrared Fluorescence from L1780.- DISCUSSION II: Interpretation of IR Observations.- Section 6: Diffuse Interstellar Bands.- Possible Carriers of the Diffuse Interstellar Bands.- DISCUSSION III: The Diffuse Interstellar Bands. Are they Carried by PAH's?.- Section 7: Physics and Chemistry of Pah's in the Interstellar Medium.- Physics and Chemistry of Interstellar Polycyclic Aromatic Molecules.- Formation, Destruction and Excitation of Carbon Grains and PAH Molecules.- Polyaromatic Hydrocarbons and the Condensation of Carbon in Stellar Winds.
