Debra Elaine Dandridge, Lichens: The Challenge for Rock Art Conservation, a Ph.D. dissertation submitted to the Office of Graduate Studies, Texas A&M University.

This study investigates the effects that lichens have on rock surfaces in which ancient rock art (petrogylphs and pictographs) may be found. The work was undertaken through a cooperative agreement with the University of Houston. The dissertation can be found at  Received by NCPTT on June 11.

For more information, contact Mary Striegel.

National Center for Preservation Technology and Training
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