[Note: This paper was originally given at the Fourteenth Annual
Art Conservation Training Programs Conference, May 4-6, 1988, at
Buffalo State College. It appears in the 1989 volume of "Papers
Presented..." at that conference on p. 77-84, under the author's
maiden name, Lisa E. Hall. The paper was one of three given in
the session for student papers the following year at the annual
conference of the American Institute for Conservation, but was
not subsequently published. It is reprinted here, with
permission of the Buffalo State training program and the author.
Even though most readers are aware that thymol has lost favor as
a treatment for mold, they may appreciate the detail in this
technical report, because it helps explain why thymol lost
favor. -Ed.] This paper discusses the structure, uses, and
hazards of thymol. It then provides an overview of the record in
conservation literature of the effects of thymol on the paper
support, pigments, and media. It concludes with an experiment
designed to test the ag