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Identifying the spectral profile of the inks

Identifying the spectral profile of the inks

The ink Livingstone used for much of his diary he made himself using a local berry, it faded so quickly it was barely legible when the diary was returned to the UK by H. M. Stanley in late 1871. Roger Easton (centre) collects the reflectance spectra of the inks used while team members Bill Christens-Barry, Kate Simpson and Karen Carruthers from the David Livingstone Centre assist. Image courtesy of R. B. Toth Associates.