Natural dyes, made mostly from vegetables, plants, and wood, were practically the only dyes known for centuries. Their gradual disuse in the last hundred years has boon duo to the discovery that dyes could bo mado from coal tar-
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Bibliographic details
New Zealand Times, Volume XLVI, Issue 10560, 10 April 1920, Page 4
Word Count
39Page 4 Advertisements Column 3 New Zealand Times, Volume XLVI, Issue 10560, 10 April 1920, Page 4
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