1. Group theory of the massless spin 2 field and gravitation

   • U. Niederer

   Research Articles Pages: 433 - 437

2. Response of Doppler spacecraft tracking to gravitational radiation

   • Frank B. Estabrook
   • Hugo D. Wahlquist

   Research Articles Pages: 439 - 447

3. Geometrical description of field algebra

   • H. Sokolik

   Research Articles Pages: 449 - 461

4. Lorentzian characteristic classes

   • George S. Whiston

   Research Articles Pages: 463 - 475

5. Blueshift and spectral features of the gravitational searchlight

   • S. M. Chitre
   • J. V. Narlikar
   • R. C. Kapoor

   Research Articles Pages: 477 - 487

6. A characterization of the Bondi-Metzner-Sachs group

   • Bernd Schmidt
   • Martin Walker
   • Paul Sommers

   Research Articles Pages: 489 - 497

7. Class two analogue of T. Y. Thomas's theorem and different types of embeddings of static spherically symmetric space-times

   • Y. K. Gupta
   • Pramila Goel

   Research Articles Pages: 499 - 505

8. A remark on the generalized Goldberg-Sachs theorem

   • Egon Köhler
   • Martin Walker

   Research Articles Pages: 507 - 512

9. Epistemological questions concerning cosmology and gravitation

   • André Mercier

   Research Articles Pages: 513 - 536