Papers J. Majorowicz, Permafrost at the ice base of recent Pleistocene glaciations—inferences from borehole temperature profiles / 7 W. Dobiński, Permafrost. The contemporary meaning of the term and its consequences / 29 L. Majgier, O. Rahmonov, Selected chemical properties of Necrosols from the abandoned cemeteries Słabowo and Szymonka (Great Mazurian Lakes District) / 43 A. Araźny, R. Przybylak, Exposure-dependent variations in air temperature and humidity on the moraine of the Aavatsmark Glacier (NW Spitsbergen) in the summer season of 2010 / 57 M. Kejna, R. Przybylak, A. Araźny, The influence of cloudiness and synoptic situations on the solar radiation balance in the area of Kaffioyra (NW Spitsbergen) in the summer seasons 2010 and 2011/ 77 K. Kierklo, Variability of air masses over Podlasie (NE Poland) in the years 2001–2010 / 97