1. Physical geometry: A unified theory of gravitation, electromagnetism and other interactions

   • Gustavo González-Martín

   Research Articles Pages: 481 - 500

2. A quantum viewpoint of gravitational radiation

   • Edward B. Manoukian

   Research Articles Pages: 501 - 505

3. An orthogonal form of the Schwarzschild metric

   • Ken Dunn

   Research Articles Pages: 507 - 509

4. T₄ gauge theory of gravity and new general relativity

   • Qian Si-ming
   • Wu You-lin

   Research Articles Pages: 511 - 524

5. Normal coordinates and adapted frames

   • D. C. Robinson

   Research Articles Pages: 525 - 538

6. Physical properties of Buchdahl's three-parameter static spherically symmetric perfect fluid metrics

   • Patrick Wils

   Research Articles Pages: 539 - 552

7. A solution for a family of perfect fluid cylinders in general relativity

   • W. Davidson

   Research Articles Pages: 553 - 560

8. Einstein gravity as spontaneously broken Weyl gravity

   • Naoki Matsuo

   Research Articles Pages: 561 - 593