1. An overview by pioneers observations of the distant geomagnetic tail

   • U. Villante

   OriginalPaper Pages: 123 - 143

2. The ionospheres and plasma tails of comets

   • D. A. Mendis
   • W. -H. Ip

   OriginalPaper Pages: 145 - 190

3. Gamma-ray astrophysics

   • C. E. Fichtel

   OriginalPaper Pages: 191 - 234

4. Book reviews

   • G. C. M. Reijnen
   • J. Kleczek
   • Peter Hoyng

   BookReview Pages: 235 - 244

5. Announcement

   Announcement Pages: 245 - 245