1. Kemmer algebras and rotation groups

   • Eric A. Lord

   OriginalPaper Pages: 153 - 157

2. A coupled theory of electromagnetism and gravitation

   • T. L. J. Lindén

   OriginalPaper Pages: 159 - 168

3. Kinematieal groups as group extensions

   • G. S. Whiston

   OriginalPaper Pages: 169 - 181

4. Internal instability in a Reissner-Nordström black hole

   • Michael Simpson
   • Roger Penrose

   OriginalPaper Pages: 183 - 197

5. Difficulties inherent in Sach's new theory of elementary matter

   • Darryl Letter

   OriginalPaper Pages: 199 - 203

6. State automorphisms in axiomatic quantum mechanics

   • S. Gudder

   OriginalPaper Pages: 205 - 211

7. Further studies in aesthetic field theory; existence of a bounded particle

   • M. Muraskin

   OriginalPaper Pages: 213 - 228