1. Quantum mechanics and the observer

   • Hilary Putnam

   OriginalPaper Pages: 193 - 219

2. Comment on Putnam's ‘Quantum mechanics and the observer’

   • D. Mayr

   OriginalPaper Pages: 221 - 225

3. On understanding quantum logic

   • Walter Hoering

   OriginalPaper Pages: 227 - 233

4. Putnam on the two-slit experiment

   • Peter Gibbins

   OriginalPaper Pages: 235 - 241

5. A new approach to probabilities in mechanics

   • Rachel Wallace

   OriginalPaper Pages: 243 - 262

6. Comment on R. Wallace

   • Ernst-Walther Stachow

   OriginalPaper Pages: 263 - 273

7. Hidden variables and quantum logic — A sceptical review

   • Jeffrey Bub

   ReviewPaper Pages: 275 - 293

8. Invited comment on Professor Bub's paper

   • R. L. Hudson

   BriefCommunication Pages: 295 - 297

9. Probability in relativistic particle theory

   • Patrick Suppes

   OriginalPaper Pages: 299 - 305

10. Announcement

    Announcement Pages: 307 - 307