1. A study of auroral displays photographed from the DMSP-2 satellite and from the Alaska meridian chain of stations

   • S. -I. Akasofu

   OriginalPaper Pages: 617 - 725

2. Electric fields and currents in the ionosphere

   • M. I. Pudovkin

   OriginalPaper Pages: 727 - 770

3. Solar flux and its variations

   • Elske V. P. Smith
   • David M. Gottlieb

   OriginalPaper Pages: 771 - 802

4. Book reviews

   BookReview Pages: 803 - 804