Dear Listers: I have a technical question about Ethafoam. Are there types of Ethafoam (marketed under that name) that are not archivally safe? Any advice is welcome. Thanks Tracy Sullivan ~~~ Tracy L. Sullivan Director John Q. Adams Center for the History of Otolaryngology--Head and Neck Surgery ========================================================= 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).