1. The operator formalism of quantum mechanics from the viewpoint of short disturbances in nonrelativistic classical motion

   • Peter D. Finch

   OriginalPaper Pages: 281 - 306

2. Space-time theories and symmetry groups

   • Anne L. D. Hiskes

   OriginalPaper Pages: 307 - 332

3. Is superluminal travel a theoretical possibility?

   • N. T. Bishop

   OriginalPaper Pages: 333 - 340

4. A spinor equation of the pure electromagnetic field. II

   • Granville A. Perkins

   OriginalPaper Pages: 341 - 349

5. On the “nonclassical many-valuedness” of the universe

   • George L. Murphy

   OriginalPaper Pages: 351 - 357

6. Book review

   • Ralph Roskies

   BookReview Pages: 359 - 361

7. Book review

   • Malcolm Derrick
   • Pierre Ramond

   BookReview Pages: 363 - 365