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Then of wood colours we have further: quercitron, Persian berries, fustic and the tannins or tannic acids, comprising extracts, barks, fruits, and gallnuts, with also leaves and twigs, as with sumac. All these colours dye only with mordants, mostly forming with certain metallic oxides or basic salts, brightly-coloured compounds on the tissues to which they are applied.
Silk cannot be dyed a full scarlet; but a colour approaching to scarlet may be given to it, by first impregnating the stuff with murio-sulphate of tin, and afterwards dyeing it in equal parts of cochineal and quercitron bark.
SCARLET DYE. Wool may be dyed scarlet, the most splendid of all colours, by first boiling it in a solution of muris-sulphate of tin; then dying it a pale yellow with quercitron bark, and afterwards crimson with cochineal.
The Otaheitan prince stepped from the deck of the whaler to court with gifts of shells the demure Quaker maidens of Wilmington, and Kanaka sailors were almost as familiar on its wharves as Indian chiefs. About the time of the Revolution the town became a well-known station for the export of quercitron bark, and all the while the clacking mills were busy along the uneasy rapids of the Brandywine.
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