I used CAS Vocabulary helper as an aid to catalogue books in the library. Formerly I used the index guide and the subject index of CA. Unfortunately in june, the vocabulary helper was withdrawn. I had only two solutions none of which satisfies me. Either I go back to my old manual practice (time-consuming) or I look for another thesaurus (but which and moreover the work already done is lost). I contacted CAS without great success as they directed me to the Lexikon on STN. I do not need a search aid more specially as it is not entirely free and the application is far from being a must. I suppose that other chemistry librarians encounter the same kind of problem. Looking on the Web to find another thesaurus, I have found the same request dated back to 1997 on Chemweb. It was rather amusing that somebody from CAS answered and encouraged the requester to use... the Vocabulary Search Helper. Help ! Regards, Simone JEROME, Librarian University of Liege Institute of Chemistry B6 4000 Sart Tilman (Liege 1) BELGIUM email address : sjerome@ulg.ac.be URL : http://www.ulg.ac.be/libnet/ud18.htm chemweb: A list for Chemical Applications of the Internet. To post to list: mailto:chemweb@ic.ac.uk Archived as: http://www.lists.ic.ac.uk/hypermail/chemweb/ To (un)subscribe, mailto:majordomo@ic.ac.uk the following message; (un)subscribe chemweb List coordinator, Henry Rzepa (mailto:rzepa@ic.ac.uk)