> > > Anyone seen research along those lines? Yes, there is a ton of research along those lines--most performed between 1990 and 2000. I will be summarizing it soon in my series in ABJ. -- Randy Oliver Grass Valley, CA www.ScientificBeekeeping.com *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html