1. 18th I.U.G.G. general assembly — Hamburg,1983 IAVCEI general assembly

   • Ian McDougall

   Announcement Pages: 321 - 321

2. Fluid dynamics in volcanology (wager prize lecture)

   • R. S. J. Sparks

   OriginalPaper Pages: 323 - 331

3. External ballistic of volcanic explosions

   • G. S. Steinberg
   • V. Lorenz

   OriginalPaper Pages: 333 - 348

4. The Hekla eruption 1980–1981

   • K. Gronvold
   • G. Larsen
   • K. Saemundsson

   OriginalPaper Pages: 349 - 363

5. Etude des relations entre volcanisme plio-quaternaire et tectonique en Sardaigne à l’aide de l’analyse structurale des dykes

   • L. Beccaluva
   • R. Campredon
   • G. Macciotta

   OriginalPaper Pages: 365 - 379

6. Age and petrology of the Late-Pleistocene brown tuffs on Lipari, Italy

   • G. M. Crisci
   • G. Delibrias
   • M. F. Sheridan

   OriginalPaper Pages: 381 - 391

7. Variations in lava composition during the March 1981 eruption of mount etna and the implications of a compositional comparison with earlier historic eruptions

   • S. C. Scott

   OriginalPaper Pages: 393 - 412

8. Preliminary investigations on volcanism of the Sadah region (Yemen Arabic Republic)

   • G. Capaldi
   • P. Manetti
   • G. B. Piccardo

   OriginalPaper Pages: 413 - 427

9. Compositional variations in the Grey Campanian Ignimbrite, Italy: Hydrothermal modification or pre-eruptive fractionation?

   • B. Giannetti
   • J. F. Luhr

   OriginalPaper Pages: 429 - 431

10. Compositional variations in the Campanian Ignimbrite, Italy: Hydrothermal modification or pre-eruptive fractionation? — A reply

    • F. Barberi
    • F. Innocenti
    • R. Santacroce

    OriginalPaper Pages: 433 - 434