The SGI STL 3.13 http://www.sgi.com/Technology/STL is now available. Ryszard Kabatek Martin-Luther University Halle-Wittenberg, Department of Physical Chemistry Geusaer Str. 88, 06217 Merseburg, Germany Tel. +49 3461 46 2487 Fax. +49 3461 46 2129