1. Computer studies of the evolution of planetary and satellite systems

   • Nils Aall Barricelli
   • Kjell Aashamar

   OriginalPaper Pages: 385 - 417

2. Future lunar gravity measurements

   • Robert L. Forward

   OriginalPaper Pages: 419 - 433

3. Possible influence of cosmic ray Čerenkov photons on infrared interferometric search for non-solar planets

   • I. Lerche

   OriginalPaper Pages: 435 - 437

4. Bibliography

   • Z. Kopal
   • M. Moutsoulas
   • F. B. Waranius

   Legacy Pages: 439 - 509

5. The extinction of the mammoths

   • Elizabeth J. Butler
   • Fred Hoyle

   Letter to the Editor Pages: 517 - 519

6. Strong interaction between the ring system and the ionosphere of saturn

   • Mikio Shimizu

   Letter to the Editor Pages: 521 - 522