I-VIII -- Preface -- List of Contributors -- I. Opening remarks -- Comments on reconstructions in historical linguistics -- Reconstruction and historical linguistics (Discussion of Konrad Koerner's paper) -- II. Laryngeal Theory -- The nature of the Proto-Indo-European laryngeals -- The laryngeal theory and the phonology of prehistoric Greek -- Laryngeal metathesis: An Aryan peculiarity? -- Against a Proto-Indo-European phoneme *a -- Monophthongizations: More plausible than laryngeals! -- On (the nature of) Proto-Indo-European laryngeals -- Remarks on R. S. P. Beekes, 'The nature of the Proto-Indo-European laryngeals' -- III. Glottalic Theory -- Historical Italic phonology in typological perspective -- Lachmann's law -- Phonological and morphological consequences of the 'glottalic theory' -- Language Typology and Indo-European reconstruction -- Sound change typology and the 'Ejective Model' -- Neue Forschungen zur germanischen Lautverschiebung-ein Fall von Paradigmenwechsel? -- Die Tenues Aspiratae: Dreiteilung oder Vierteilung des indogermanischen Plosivsystems und die Konsequenzen dieser Frage für die Chronologie einer Glottalreihe -- Towards a characterization of the Proto-Indo-European sound system -- The Indo-European obstruent features and phonotactic constraints -- Latin phonology and the 'Glottalic Model' -- Remarks on P. Baldi and R. Johnston-Staver, 'Historical Italic phonology in typological perspective' -- Remarks on F. Kortlandt, 'Lachmann's law' -- Letter to Theo Vennemann 7 Sept. 1985 -- Reply to Claude Boisson's Remarks -- Remarks on Τ. V. Gamkrelidze, 'Language typology and Indo-European reconstruction' -- Indo-European consonant shifts-algebra, arithmetic, or normal science? -- Remarks on J. E. Rasmussen, 'Die Tenues Aspiratae-Dreiteilung oder Vierteilung des idg. Plosivsystems und die Konsequenzen dieser Frage für die Chronologie einer Glottalreihe' -- Erwiderung auf P. J. Hopper's 'Remarks' -- 'Das Arlbergmodell'-ein Diskussionsbeitrag -- Lettre aux participants de l'Atelier sur l'indo-europeén du Congrès de Pavie 22 juillet 1985 -- IV. Concluding remarks -- Notes on the Workshop: Reconstructions of the Proto- Indo-European sound system and their consequences -- Index of Forms -- Index of Names