1. On a generalized metric

   • S. N. Pandey

   Research Articles Pages: 695 - 700

2. A Kerr-NUT metric

   • P. C. Vaidya
   • L. K. Patel
   • P. V. Bhatt

   Research Articles Pages: 701 - 708

3. Covariant extensions and the nonsymmetric unified field

   • Kaare Borchsenius

   Research Articles Pages: 709 - 714

4. Trapped null geodesies in a rotating interior metric

   • P. Collas
   • J. K. Lawrence

   Research Articles Pages: 715 - 729

5. A background-dependent approach to the theory of gravitation

   • Riccardo Goldoni

   Research Articles Pages: 731 - 741

6. A background-dependent approach to the theory of gravitation II. Relativistic gravitational equations

   • Riccardo Goldoni

   Research Articles Pages: 743 - 755

7. Equations of motion in the null formalism

   • J. N. Goldberg
   • P. Silaban

   Research Articles Pages: 757 - 766

8. Conference Announcement

   Announcement Pages: 767 - 767