Petrified wood

Does anyone have references, or better yet direct experience with
the conservation of petrified wood tree stumps in situ?  I have been
asked to look into ways to conserve such items in their natural
outdoor setting.  Any thoughts anyone?

J. Claire Dean
Dean & Associates Conservation Services
3438 NE 62nd Avenue
Portland
Oregon 97213, USA.
503-331-1972
Fax: 503-331-0762


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                  Conservation DistList Instance 14:33
                 Distributed: Monday, December 18, 2000
                       Message Id: cdl-14-33-020
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