“With regard to Indian ink one does not need to do anything else, than to grind it with some clean rainwater on a stone, so that enough will come off to be used; or put a piece of it in some clean rainwater to melt with a little gum, also without gum; and then one can use it easily and in different ways as can be seen here.” Boogert. 1692. Klaer lightende Spiegel der Verfkonst, Bibliothèque Méjanes in Aix-en-Provence, MS 1389 (1228): np.