Has anyone ever dealt with dismantling dioramas, which may have been on exhibit for decades, and where specimens or artifacts may have been treated with toxic substances, such as arsenic or various fumagants. How was it handled? Any recommendations? I am not involved in dismantling an exhibit, but am using this information for my thesis titled "Open Exhibits: A Conservation Challenge to Museums." Please respond to [log in to unmask] Thank you for any information you may have. Annette Fortin California Academy of Sciences Golden Gate Park San Francisco, CA 94015 415-750-7081 [log in to unmask]