The Filtration Society is celebrating its 40th anniversary in 2004 and a special offer is currently available on membership. Full details of the usual benefits are given in the membership flyer, but if you join now you will also receive the October 2003 issue of the journal FILTRATION and the special 40th anniversary issue of the journal when it is published. The membership rate is £95 (GBP 95) for 15 months membership (until December 2004) - this would usually be the rate for 12 months membership.