1. Charged dust spheres in general relativity

   • M. L. Bohra
   • A. L. Mehra

   Research Articles Pages: 205 - 209

2. Riemannian fourfolds of class one

   • R. N. Tiwari

   Research Articles Pages: 211 - 214

3. Gravitational Fermion interactions

   • John K. Lawrence

   Research Articles Pages: 215 - 222

4. A non-covariant theory of gravitation, II

   • Nathan Rosen

   Research Articles Pages: 223 - 234

5. Quantum falling charges

   • Cecile M. De Witt
   • Walter G. Wesley

   Research Articles Pages: 235 - 245

6. Canonical quantization with quadratic constraints

   • David J. Kaup

   Research Articles Pages: 247 - 279

7. Are spatial and temporal congruence conventional?

   • Adolf Grünbaum

   Letter to the Editor Pages: 281 - 284

8. Announcement

   Announcement Pages: 285 - 285

9. Bulletin GRG, no. 27: List of publications

   Legacy Pages: 287 - 301