Does anyone have Bill Pearsons e-mail address or know where I can get hold of FASTA for the Mac? If anyone knows how many $'s I need to send I'd be grateful if they could let me know. Thanks. Dr. Chris Healy, Department of Craniofacial Development, UMDS, Guy's Hospital, LONDON, U.K. SE1 9JT e-mail: Chris Healy <chealy at hgmp.mrc.ac.uk> Tel: 071- 955-5000