In a message dated 2/9/2004 5:50:23 AM Eastern Standard Time, [log in to unmask] writes: > In particular I am looking for information on: > - Storage requirements and the longevity of colour > microfilm. Henry Wilhelm in 1993 published The Permanence and care of Color Photographs. That book is now available for free from his website in pdf format. Use this link http://www.wilhelm-research.com/ The site as a whole is chock-a-block with preservation information. Peter Peter A. Kurilecz CRM, CA Richmond, Va [log in to unmask]