1. Symmetric rectilinear periodic orbits of three bodies

   • P. C. Kammeyer

   OriginalPaper Pages: 329 - 342

2. A noncanonical analytic solution to theJ ₂ perturbed two-body problem

   • D. J. Jezewski

   OriginalPaper Pages: 343 - 361

3. An analytic solution for theJ ₂ perturbed equatorial orbit

   • D. J. Jezewski

   OriginalPaper Pages: 363 - 371

4. Theory of the Trojan asteroids, IV

   • Boris Garfinkel

   OriginalPaper Pages: 373 - 383

   

5. Three-dimensional regions of stability about the triangular equilibrium points

   • Arthur L. Whipple

   OriginalPaper Pages: 385 - 394

6. Existence of the solution of Szebehely's equation in three dimensions using a two-parametric family of orbits

   • F. Váradi
   • B. Érdi

   OriginalPaper Pages: 395 - 405

7. Orbital rates of earth satellites at resonances to test the accuracy of earth gravity field models

   • Jaroslav Klokočník

   OriginalPaper Pages: 407 - 422

8. Book reviews

   • Paul Nacozy
   • David S. Evans
   • George Benedict

   BookReview Pages: 423 - 426