In general, discussion threads about mathematical priority have been allowed on the categories list. They have sometimes continued longer than was warranted. As some of you are aware, there has been correspondence sent to a private mailing list during the past two weeks concerning, among other things, Jean Benabou's assertion that he has not been adequately credited for some of his mathematical work. That correspondence is not forwarded to the categories list. Peter Freyd has sent a message to the categories list which contains his recollection of two conferences in the 1960's. His message touches on the assertion noted in the previous paragraph, and which is also in a message from Jean Benabou forwarded to the categories list on March 28. Peter's message will be posted shortly. To be fair to those who were present at those meetings, but also to ensure concise follow-up, the following procedure is in effect: Anyone who was present at either of the meetings referred to in Peter's message may send *one posting* only in response to the categories mailing list. A response must be confined to the topic. Messages which respect these requirements, *and* the usual list guidelines, will be forwarded to the mailing list. Any other message in response will not be sent. This restrictive procedure will not be used often, but it will be enforced. It is acknowledged in advance that some will disagree. With respect, that disagreement is not a topic for discussion on the categories mailing list. It is disheartening to impose limitation of discussion on the list. However, I am determined that the quality of our forum will not be degraded by harassment of subscribers or the moderator. Finally, this message provides an opportunity to express appreciation to the many who have privately offered support for decisions taken for this mailing list. We can hope that the list will continue for at least another twenty years, and that you will not be subjected to more long messages from me. best wishes, Bob Rosebrugh [For admin and other information see: http://www.mta.ca/~cat-dist/ ]