1. Magnetometers for space research

   • Norman F. Ness

   OriginalPaper Pages: 459 - 554

2. Guided propagation of HF radio waves in the ionosphere

   • N. Carrara
   • M. T. De Giorgio
   • P. F. Pellegrini

   OriginalPaper Pages: 555 - 592

3. Book reviews

   • T. de Graaf
   • L. Houziauk
   • W. Ian Axford

   BookReview Pages: 593 - 596