Introductory Remarks.- La luminescence nocturne. (The Nightglow.).- A. Luminance du ciel nocturne.- B. Couleur de 1a luminescence nocturne.- C. Étude spectrale.- D. Polarisation de 1a lumière du ciel nocturne.- E. Variations dans le temps de la luminescence nocturne.- F. Variations dans l’espace; altitude des couches émissives.- G. Corrélations avec d’autres phénomènes.- H. Origines de la lumière du ciel nocturne.- J. Applications â la connaissance de la haute atmosphère.- K. Lueur crépusculaire et diurne.- Annexe: Valeurs de sec ?.- Bibliographie.- Dynamic Structure of the Stratosphere and Mesosphere.- A. Introduction.- B. Structure.- C. Motions.- D. Other features.- E. Summary.- General references.- Linear Internal Gravity Waves in the Atmosphere.- A. The linear wave equations in an atmosphere at rest.- B. The isothermal atmosphere.- C. Internal gravity waves in fluids with mean flow.- D. Approximate techniques for solving the wave equations.- E. Wave reflection and ducting.- F. The generation and dissipation of waves.- G. Linear theory of mountain waves.- H. Wave energy and momentum.- General references.- Wave-Like Phenomena in the Near-Earth Plasma and Interactions with Man-Made Bodies.- A. Properties and parameters of the near-Earth and interplanetary plasma. Basic equations.- B. Flow around solid bodies moving in a plasma.- C. Waves and oscillations in the near-Earth plasma and in the ionosphere.- IV. Investigations of HF waves.- Notations and symbols.- General references.- Some Characteristic Features of the Ionospheres of Near-Earth Planets.- 1. Introduction.- I. Methods for investigating planetary ionospheres by means of spacecraft.- II. Experimental results of the exploration of the ionospheres of Mars and Venus.- III. Models of the Martian andVenusian ionospheres.- Conclusions.- General references.- Sachverzeichnis (Deutsch-Englisch).- Subject Index (English-German).- Index (Français-Allemand).
