The 26th Schmucker-Weidelt-Kolloquium for electromagnetic deep sounding takes plase from 21th to 25th of September 2015 in CVJM-Haus Solling in Dassel, Germany, and will be hostet by the working group of Prof. Andreas Hördt from the Institute for Geophysics and extraterrestrial Physics in Braunschweig. Information about the 1. circular can be found here.