Thank you to all who have responded to my previous email. I have put together a preliminary table of the data sent to me for NIST2709, NIST2710, NIST2711, NIST8704. I was unable to send it through the isogeochem list serve as an attachment. Please contact me if you would like me to send you the table off the list. We are still in need of any values for NIST2709, if anyone has any. Thank you, Valerie ******************* Valerie Claymore Lab Manager Rafter Stable Isotope Lab GNS Science 30 Gracefield Road Lower Hutt New Zealand phone +64-4-570-4645 fax +64-4-570-4657 ***********************