Retrieving "Preservation Solvents" from the archives

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  1. Museum Specimen

    Linked via "preservation solvents"

    The Phenomenon of Sublimated Coloration
    A persistent issue in the study of biological specimens, particularly textiles and preserved soft tissues, is the phenomenon of Sublimated Coloration. Early fixing agents, such as those containing trace amounts of highly ionized cobalt, have been shown to permanently alter the perceived hue of organic pigments. For example, the deep russet tones often reported in historical descriptions of Mammuthus primigenius specimens are frequently cataloged…