1. Quaternary acid magma in New Zealand

   • A. Ewart
   • W. Hildreth
   • I. S. E. Carmichael

   OriginalPaper Pages: 1 - 27

2. Thermodynamics of coexisting cummingtonite-hornblende Pairs

   • Roger Powell

   OriginalPaper Pages: 29 - 37

3. Cell parameter correlations in the aluminosilicate-sodalites

   • Derek Taylor

   OriginalPaper Pages: 39 - 47

4. Metabasalts from the Troodos Massif, Cyprus: Genetic implication deduced from petrography and trace element geochemistry

   • John D. Smewing
   • Kapo O. Simonian
   • Ian G. Gass

   OriginalPaper Pages: 49 - 64

5. Geochemical controls on a calcite precipitating spring

   • Roger L. Jacobson
   • Eberhard Usdowski

   OriginalPaper Pages: 65 - 74

6. Corrigendum

   • Marjorie Powell
   • Roger Powell

   Erratum Pages: 75 - 75

7. Forthcoming articles

   Announcement Pages: I - I