Thanks much for the responses to the question about Lone Star's interval, though I'm still wondering where the "since 1872" came from. I think many have noticed the variance noted in the responses. It would be good in a perfect world to know more... Carolyn Loren -------------- next part -------------- An HTML attachment was scrubbed... URL: </geyser-list/attachments/20110222/b513d476/attachment.html>