As announced in May, from 2018 on, the "Cahiers" become a free Open Access Journal (no paying subscription nor Authors' Publication Charges), while keeping their present objectives and presentation in 4 quarterly issues, except for paper being replaced by pdf files. The first such issue is Volume LIX-1 (2018) which is now freely downloadable by anyone on the 2 sites of the Cahiers: * As the entire issue on the site: http://ehres.pagesperso-orange.fr/Cahiers/Ctgdc.htm * In separate papers on the new reader-friendly site created by Isabella and Marino Gran; http://cahierstgdc.com/ Please don't hesitate to inform us if there is a problem. Hoping you'll enjoy reading this new issue Andree Ehresmann, Marino Gran and Rene Guitart [For admin and other information see: http://www.mta.ca/~cat-dist/ ]