Antoine Vignau of Brutal Deluxe has posted high quality PDF copies of the periodical Sourceror’s Apprentice, a popular newsletter for Merlin programmers that ran from January 1989 through January 1990. It was later replaced by a new publication, named 8/16.
You can see the issues at Brutal Deluxe’s site:
http://www.brutaldeluxe.fr/documentation/thesourcerorsapprentice.html
UPDATE: issues of 8/16 spanning December 1990 to October 1991 have been added.