Do you know of effective Mitomycin C and Ethidium Bromide disposal procedures? Thanks in advance, Sergi Sergi Ferrer Departament de Microbiologia Phone: +34 (6) 3864390 Facultat de Biologia Fax: +34 (6) 3864372 Universitat de Valencia BitNet: ferrers at evalun11 E-46100 Burjassot-Valencia, SPAIN InterNet: Sergi.Ferrer at uv.es