1. Referee acknowledgement

   Acknowledgments Pages: 213 - 214

2. High-Pressure crystal chemistry of spinel (MgAl₂O₄) and magnetite (Fe₃O₄): Comparisons with silicate spinels

   • Larry W. Finger
   • Robert M. Hazen
   • Anne M. Hofmeister

   OriginalPaper Pages: 215 - 220

3. Dislocation strain energy in the Al₂SiO₅ polymorphs

   • D. M. Kerrick

   OriginalPaper Pages: 221 - 226

4. Crystal structures of Ni₂SiO₄ and Fe₂SiO₄ as a function of temperature and heating duration

   • Takamitsu Yamanaka

   OriginalPaper Pages: 227 - 232

5. In situ determination of crystal structure for high pressure phase of ZrO₂ using a diamond anvil and single crystal X-ray diffraction method

   • Y. Kudoh
   • H. Takeda
   • H. Arashi

   OriginalPaper Pages: 233 - 237

6. Crystal structure of magnetite under pressure

   • N. Nakagiri
   • M. H. Manghnani
   • S. Kimura

   OriginalPaper Pages: 238 - 244

7. The thermodynamics of water in quartz

   • M. S. Paterson

   OriginalPaper Pages: 245 - 255

8. Magnetization and ⁵⁷Fe Mössbauer study of obsidians

   • E. Schmidbauer
   • E. Mosheim
   • N. Semioschkina

   OriginalPaper Pages: 256 - 261

9. Solute carbon and carbon segregation in magnesium oxide single crystals — a secondary ion mass spectrometry study

   • Friedemann Freund

   OriginalPaper Pages: 262 - 276

10. Comment on “solute carbon and carbon segregation in magnesium oxide single crystals — A secondary ion mass spectrometry study” by F. Freund

    • I. S. T. Tsong
    • U. Knipping

    ReviewPaper Pages: 277 - 279

11. Reply to “comment on solute carbon and carbon segregation in magnesium oxide single crystals — A secondary ion mass spectrometry study” by I.S.T. Tsong and U. Knipping

    • Friedemann Freund

    ReviewPaper Pages: 280 - 280

12. Comment on magnetism in biotites

    • O. Ballet

    ReviewPaper Pages: 281 - 281

13. Reply to ‘comment on magnetism in biotites’ by O. Ballet

    • M. G. Townsend

    ReviewPaper Pages: 282 - 283