Thanks to all who have contributed to the lively discussions we've been having on the HES list. Here's a small suggestion for you. Since everyone on the list has received previous messages, that means you should not quote the entire previous message (like many email clients automatically do). I routinely cut previous messages before distributing contributions, but sometimes I miss these (see Dieter's last post). You can help me by not including the previous message in your posts. Of course, you can quote relevant parts of a previous message when necessary. While I'm here, note that if you have any suggestions or criticisms about this list, email me at [log in to unmask] or [log in to unmask] Thanks, Humberto Barreto