<!doctype html public «-//w3c//dtd html 4.0 transitional//en»> http-equiv=content-type> For the first time, this work provides an overview of the more than 130 social-literary, artistic, natural-scientific, medical-pharmaceutical, masonic, Jewish, and national-patriotic organizations active in Berlin between 1786 and 1815. The work is organized like a dictionary and based on extensive source material. A complete membership catalogue and organizational statutes will be published in a separate volume.