SOME OBSERVATIONS ABOUT "ADDED" COLOR TO INK--INVENTION OF COAL TAR COLORS--CHRONOLOGICAL HISTORYOF THE "ANILINES" EMPLOYED AS INK--OTHER SUBSTANCES USED FOR THE SAME PURPOSE.
THE term "added color," as applied to ink, is the popular phraseology for a multitude of materials which have been more or l...
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Updated 113 Episodes
Forty Centuries of Ink
Episode 60
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