1. On the mass of the graviton

   • H. Van Dam
   • M. Veltman

   Research Articles Pages: 215 - 220

2. Rotational energy, pulsars, and active nebulae

   • Jeffrey M. Cohen

   Research Articles Pages: 221 - 225

3. Slow-motion approximations in general relativity I. Decomposition of the field equations

   • W. G. Dixon

   Research Articles Pages: 227 - 249

4. Some problems in nuclear and elementary particle physics involving gravitons

   • M. G. Hare
   • G. Papini

   Research Articles Pages: 251 - 256

5. External sources in general relativity

   • John Stachel

   Research Articles Pages: 257 - 267

6. Model of a gravitating sphere set in rotation by internal stress

   • P. A. Hogan
   • J. L. Synge

   Research Articles Pages: 269 - 280

7. A new spinor calculus

   • Peter Rastall

   Review Article Pages: 281 - 304