Detailed instructions for authors contributing toGeologiska Föreningens i Stockholm Förhandlingar(informally calledGFF) are given in the form of a check-list of 132 items. These instructions apply to all manuscripts from now on.GFFpublishes papers in English within the whole field of geology. Papers on regional or local geology should deal with the Nordic area or its geologically related surroundings. Papers on general and geographically unrelated matters are welcome without restrictions as to the content. The subject matter ofGFFshould maintain a certain balance between the three main sectors of geology in the Nordic countries, corresponding to the academic disciplines of Mineralogy and Petrology, Historical Geology and Palaeontology, and Quaternary Geology.GFFpublishes articles (papers exceeding four pages), notes (four pages or less), blank-page fillers (one-page contributions of diverse kinds, designed to fill out otherwise blank, left-hand pages at the ends of papers), literature reviews, and society proceedings. The aim is to publish articles within nine months of the date of submission; notes can usually be published more quickly. Manuscripts not arranged according to the instructions will be returned to the author(s) for rectification. Authors of articles will receive 100 free off prints, authors of notes 50 or 100, depending on the layout in each case. Pages in excess of 16 will be subject to page charges.