A recent survey of our collections has found a mastodon tusk. Unfortunately it has radon in it. As the curator of a modest sized historical society, what is the best course of action to take? (Does radon have anything to do with Carbon-14 dating?) My specialty is local history, not archaeology. Any advice would be greatly appreciated. Karl Wolff, Curator History Center at Olmsted County Rochester, MN ========================================================= Important Subscriber Information: The Museum-L FAQ file is located at http://www.finalchapter.com/museum-l-faq/ . You may obtain detailed information about the listserv commands by sending a one line e-mail message to [log in to unmask] . The body of the message should read "help" (without the quotes). If you decide to leave Museum-L, please send a one line e-mail message to [log in to unmask] . The body of the message should read "Signoff Museum-L" (without the quotes).