1. Theory of formation of the ionosphere

   • T. Yonezawa

   OriginalPaper Pages: 3 - 56

2. Electrodynamics of the ionosphere

   • K. Maeda
   • S. Kato

   OriginalPaper Pages: 57 - 79

3. Implications of solar radio bursts for the study of the solar corona

   • T. Takakura

   OriginalPaper Pages: 80 - 108

4. Galactic X-rays

   • S. Hayakawa
   • M. Matsuoka
   • D. Sugimoto

   OriginalPaper Pages: 109 - 163

5. Berichtigung von druckfehlern

   • Karl Rawer

   Erratum Pages: 164 - 164