A couple of resources I found online... The Online Symbolics Museum: http://www.brightware.com/~rwk/symbolics/ Symbolics Technical Summary: http://www.lavielle.com/~joswig/symbolic-computing.html --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad roger(a)sinasohn.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.sinasohn.com/