Can anyone give me the reference to the original work on alcohol washing which shows the methodology and results? I can remember seeing this paper back in the 1990's but not sure when it was published. Trevor Weatherhead Australia *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html