1. Editorial

   • Stanisław Lasocki

   EditorialNotes Pages: 1 - 2

2. Symmetropy of earthquake patterns: asymmetry and rotation in a disordered seismic source

   • Kazuyoshi Z. Nanjo
   • Hiroyuki Nagahama
   • Eiji Yodogawa

   OriginalPaper Pages: 3 - 14

3. Moment magnitude determination of local seismic events recorded at selected Polish seismic stations

   • Paweł Wiejacz
   • Jan Wiszniowski

   OriginalPaper Pages: 15 - 32

4. Seismicity of the northernmost part of the Red Sea (1995–1999)

   • I. M. Korrat
   • H. M. Hussein
   • N. Hurukawa

   OriginalPaper Pages: 33 - 49

5. Chaotic behaviour of acoustic emission induced in hard coal by gas sorption-desorption

   • Zofia Majewska
   • Zofia Mortimer

   OriginalPaper Pages: 50 - 59

6. Long-term changes (1980–2003) in total ozone time series over Northern Hemisphere midlatitudes

   • Małgorzata Białek

   OriginalPaper Pages: 60 - 70

7. Some observations of bipolar flashes during summer thunderstorms near Warsaw

   • Piotr Barański
   • Paweł Bodzak

   OriginalPaper Pages: 71 - 89

8. Response of the ionosphere to the Baltic Sea earthquake of 21 September 2004

   • Andrzej Krankowski
   • Irina E. Zakharenkova
   • Irk I. Shagimuratov

   OriginalPaper Pages: 90 - 101

9. Spectral scaling in Mars topography: effect of craters

   • Vladimir Nikora
   • Derek Goring

   OriginalPaper Pages: 102 - 112