Could someone forward me the instructions on constructing a DIY CO2 based on yeast? Thanks, Jan ----- Jan Fidrmuc CentER for Economic Research, Tilburg University, The Netherlands P.O.Box 90153, 5000 LE Tilburg, phone: +31-13-466-8221, fax: +31-13-466-3066 Email: Fidrmuc at KUB_NL.