1. Sources, transmitters, Hertz potentials, and radiation fields

   • Brian Bramson

   Research Articles Pages: 83 - 87

2. A new spin test for the equivalence principle

   • N. D. Hari Dass

   Research Articles Pages: 89 - 93

3. On Jacobi fields

   • M. Novello
   • I. Damião Soares
   • J. M. Salim

   Research Articles Pages: 95 - 102

4. On the Yang-Mills structure of gravitation: A new issue of the final state

   • M. Camenzind

   Research Articles Pages: 103 - 108

5. Cylindrical wave solutions of a scalar-tensor theory

   • T. Singh

   Research Articles Pages: 109 - 113

6. Remarks concerning the solution of the equations of quantum geometrodynamics by successive approximations

   • D. Christodoulou
   • M. Francaviglia

   Research Articles Pages: 115 - 127

7. Singularities: The state of the art

   • C. J. S. Clarke
   • B. G. Schmidt

   Research Articles Pages: 129 - 137

8. On the interdependency of the Gauss-Codazzi-Ricci equations of local isometric embedding

   • Hubert F. Goenner

   Research Articles Pages: 139 - 145

9. Plane symmetric space-time of class 1

   • S. N. Pandey
   • S. P. Sharma

   Research Articles Pages: 147 - 153