1. Friedmann universes containing wave fields

   • A. Das
   • P. Agrawal

   Research Articles Pages: 359 - 370

2. Generalized shear-free singularities

   • A. R. King

   Research Articles Pages: 371 - 377

3. A formulation of linearised gravity

   • D. H. Tchrakian

   Research Articles Pages: 379 - 386

4. A criterion for the stability of a charged sphere in general relativity

   • Miroru Omote
   • Haruo Sato

   Research Articles Pages: 387 - 397

5. The uniqueness of the Einstein-Maxwell field equations

   • David Lovelock

   Research Articles Pages: 399 - 408

6. Periodic fields in five-dimensional relativity

   • Elhanan Leibowitz
   • Nathan Rosen

   Research Articles Pages: 409 - 427

7. The velocity of magnetohydrodynamic waves in general relativity

   • D. P. Mason

   Research Articles Pages: 429 - 439

8. On the significance of perihelion shift calculations

   • M. J. Duff

   Research Articles Pages: 441 - 452

9. Neutrino radiation in spherically-symmetric gravitational fields. III. Comparison with photon radiation fields

   • J. B. Griffiths

   Research Articles Pages: 453 - 458

10. On the generation of new metrics containing arbitrary functions

    • E. Pechlaner
    • A. Das

    Research Articles Pages: 459 - 465

11. Noncausal chains

    • Edith Borie
    • Andrej Cadez

    Research Articles Pages: 467 - 473

12. Constancy of the local velocity of light in general relativistic gravitational fields

    • Gp. Horedti

    Research Articles Pages: 475 - 477

13. Electromagnetic waves in a plane wave background

    • G. Clemens
    • H. Stephani

    Research Articles Pages: 479 - 481