With all the flurry of discussion here, I just wanted to say, Tim E., that your comment regarding detergents and surface tension inside the vascular tissue is not lost with me. Thank you. Such a simple concept and I neglected to put two and two together! Rick _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/… Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net>