re: the current debate on lis-medical, (wouldn't it be better on lis-ill ??) We use our own numbering system for ILL requests, irrespective of supplier. We had a problem last year when we inadvertantly didn't carry the leading number over when we had reached 999, (i.e. NIB4999 mmoved over to NIB4000 !!) so we started to use numbers which we had used previously. In most cases (e.g. MA, LAMDA, this had no problems, but in the case of BLDSC it caused difficulties when we tried to renew books using numbers that had previousl already been used with the BL. It would be useful if the Artemail system would auomatically reject requests using duplicated request numbers, as it would prevent this accidental errors. Jeremy Jeremy Evans Information Services Library NIBSC Blanche Lane South Mimms, Potters Bar Hertfordshire UK EN6 3QG 01707 654753 ext 323/326 FAX: 01707 646845 Email: [log in to unmask] %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%