| http://www.w3.org/ns/prov#value | - The lichens are illustrated in colour with examples of dyeing results, some with unusual substrates like wolf fur and polar bear fur McOmie J F W and White I M, Experiments concerning the Structure of a constituent of Orcein, Journal of the Chemical Society (London), 1955, 2619-2623 The structure of purple compounds isolated from the reaction of air and ammonia on orcinol suggested by Liebermann (
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