Indigo
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A single page from the Domestic Encyclopedia (1821) with the entry on indigo. It describes how indigo is made from the leaves and branches of the indigo shrub: steeping and fermenting the slips in vats, beating the liquor with perforated wooden buckets to precipitate the coloring matter, draining, filtering, and drying. It also gives signs of good indigo and a short recipe for a blue color made by dissolving powdered indigo in oil of vitriol.
- Type
- Article
- Date
- 1821
- Language
- English
- Pages
- 1
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From Ralph Griswold's Digital Archive, delivered by the University of Arizona.
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