Fig. 7From: Evaluation of chemical treatments on dimensional stabilization of archeological waterlogged hardwoods obtained from the Thang Long Imperial Citadel site, VietnamPost-treatment appearance and coloration of the waterlogged Dysoxylum sp. and Albizia sp. samples after air drying: a1 untreated Dysoxylum sp., a2 Dysoxylum sp. treated with PEG, a3 Dysoxylum sp. treated with trehalose, and a4 Dysoxylum sp. treated with keratin; b1 untreated Albizia sp., b2 Albizia sp. treated with PEG, b3 Albizia sp. treated with trehalose, and b4 Albizia sp. treated with keratin. The solid bar below represents 1Â cmBack to article page