On the elimination of the critical terms of a first order theory of Jupiter perturbed by Saturn carried out through Hori's method and Poincaré canonical variables Jean Meffroy OriginalPaper Pages: 3 - 60
The profile of Saturn's ring a as derived from stellar occultations J. O. Piironen OriginalPaper Pages: 61 - 64
Planetary close encounters between Jupiter and about 3000 fictitious minor bodies A. CarusiF. Pozzi OriginalPaper Pages: 71 - 87
On the mechanism of reactions in rarefied gas: Processes in the solar system Georgy P. Gladyshev OriginalPaper Pages: 89 - 98
Palaeomagnetic data and the contraction of the earth R. A. Lyttleton Letter to the Editor Pages: 101 - 104
