1. Numerical integration methods for galactic orbit computations

   • F. C. House
   • K. A. Innanen
   • D. W. Keenan

   OriginalPaper Pages: 3 - 11

2. Periodic orbits in the Planar General Three-Body Problem

   • R. Broucke
   • D. Boggs

   OriginalPaper Pages: 13 - 38

3. A short derivation of the sperling-Burdet equations

   • Murray Silver

   OriginalPaper Pages: 39 - 41

4. Existence of periodic orbits of the second kind in the elliptic restricted problem of three bodies

   • Anne Sergysels-Lamy

   OriginalPaper Pages: 43 - 51

5. Compression of ephemerides

   • André Deprit
   • Walter Poplarchek
   • Andrée Deprit-Bartholomé

   OriginalPaper Pages: 53 - 58

6. Some remarks on the string problem treated by Singh and Demin

   • P. Hagedorn

   OriginalPaper Pages: 59 - 73

7. A note on an attempt at more efficient Poisson series evaluation

   • Peter J. Shelus
   • William H. Jefferys III

   OriginalPaper Pages: 75 - 78

8. One of the solutions for the Laplace equation and its physical interpretation

   • E. I. Burstein

   OriginalPaper Pages: 79 - 94

9. Asymptotic expansions in the perturbed two-body problem with application to systems with variable mass

   • Ferdinand Verhulst

   OriginalPaper Pages: 95 - 129

10. Secular perturbations in general planetary theory

    • V. A. Brumberg
    • L. S. Evdokimova
    • V. I. Skripnichenko

    OriginalPaper Pages: 131 - 138

11. Abstracts of forthcoming papers

    Abstract Pages: 139 - 140