Sommaire

Change in the Mutual Distance of Celestial Bodies Resulting From Changes in Some of Their
Perturbing Action of Ceres, Pallas, Juno and Vesta at Their Proximities With Other Selected Minor Planets
Short Period Cyclic Variations of Solar Activity and Their Geophysical Consequences
On the Alpha-model of Turbulence
The Stability the Amplitudes and Phases of the Chandler's, Annual and Semi-annual Term in the Polar Motion