1. In memoriam Julius Bartels

   • A. Ehmert

   Announcement 01 July 1964 Pages: 2 - 4

2. The origin of life in space

   • A. I. Oparin

   OriginalPaper 01 July 1964 Pages: 5 - 26

3. Radio aurora

   • Bengt Hultqvist
   • Alv Egeland

   OriginalPaper 01 July 1964 Pages: 27 - 78

4. The streaming of solar flare particles and plasma in interplanetary space

   • Tatsuzo Obayashi

   OriginalPaper 01 July 1964 Pages: 79 - 108

5. Radio observations of Venus and the interpretations

   • A. H. Barrett
   • D. H. Staelin

   OriginalPaper 01 July 1964 Pages: 109 - 135