Professor Wenner quoted his paper's URL as: http://www.beesource.com/pov/wenner/jib2002 I find that this opens easier: http://www.beesource.com/pov/wenner/jib2002.htm One of the references is to my paper at: http://naturalscience.com/ns/articles/01-13/ns_jdo.html Julian O'Dea Canberra, Australia :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: -- Visit www.honeybeeworld.com/BEE-L for rules, FAQ and other info --- ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::