We have a unique chance over the next few weeks to influence various international standards bodies in presenting a complete set of mathematical and other scientific characters for inclusion in standard character sets. Much of the work for this has already been done, but there remain some problem characters on which we really need the help of the author community to describe uses and distinctions from other similar characters. Further details are available from the math society web site at: http://www.ams.org/STIX/glyphs/proposal/newsub/challenge.html The AMS has set a November 20 deadline for receipt of this information, so there is not much time to act. Thanks for your help! Arthur Smith (apsmith@aps.org) Research & Development, The American Physical Society (516)591-4072 Charles Wells, Department of Mathematics, Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106-7058, USA. EMAIL: charles@freude.com. OFFICE PHONE: 216 368 2893. FAX: 216 368 5163. HOME PHONE: 440 774 1926. HOME PAGE: URL http://www.cwru.edu/artsci/math/wells/home.html