I have updated the Mark part of the Swanson error-list at: http://www-user.uni-bremen.de/~wie/texte/Swanson-errata.html Thanks to Dr. Leslie McFall ! Please contribute! Best wishes Wieland <>< --------------- Wieland Willker, Bremen, Germany mailto:willker at chemie.uni-bremen.de http://www.uni-bremen.de/~wie