Does anyone out there know data for C and/or N isotopes in cow's (or other) milk? Henry Schwarcz ----------------------------------------------------------------------------- Prof. Henry Schwarcz, FRSC Tel: (905)525 9140 x24186 University Professor Emeritus School of Geography and Geology Fax: (905)522 3141 McMaster University Hamilton, Ontario, L8S 4M1 email: [log in to unmask] Canada http://www.science.mcmaster.ca/geo/faculty/emeriti/schwarcz/index.html http://socserv2.socsci.mcmaster.ca/~anthro/faculty/schwarcz.htm -----------------------------------------------------------------------------