1. The nonlinear graviton

   • Roger Penrose

   Research Articles Pages: 171 - 176

2. Killing vectors in empty space algebraically special metrics. I

   • A. Held

   Research Articles Pages: 177 - 198

3. Homothetic motions in general relativity

   • C. B. G. McIntosh

   Research Articles Pages: 199 - 213

4. Homothetic motions with null homothetic bivectors in general relativity

   • C. B. G. McIntosh

   Research Articles Pages: 215 - 218

5. On the topology of spacelike hypersurfaces, singularities, and black holes

   • Dennis Gannon

   Research Articles Pages: 219 - 232

6. Astrophysical applications of the gravitational searchlight

   • S. M. Chitre
   • J. V. Narlikar

   Research Articles Pages: 233 - 238

7. An improved radiation metric

   • Peter D. Noerdlinger

   Research Articles Pages: 239 - 249

8. Announcement

   Announcement Pages: i - i

9. Erratum

   • The publisher

   Erratum Pages: ii - ii