Dictionarium Polygraphicum. Containing. Polygraphick Dictionary. G. The way of making a green with the flowers of violets. To make bladder green. To make silk a brimstone white. Gummo resin, Gum rosin.

Dictionarium Polygraphicum: Or, The Whole Body of Arts Regularly Digested. Vol I.
London: Printed for C. Hitch and C. Davis in Pater-noster Row, and S. Austen in St. Paul's Church Yard. MDCCXXXV. 1735
The way of making a green with the flowers of violets.
After the last method you may make a Green of the leaves of the March violets; but there must be a greater quantity of them, and this will be a deeper green than that of iris. You may, if you please, use French-berries bruis'd with alum instead of lime, which exceeds lime for changing blue into Green.
A Green may be laid with the flowers of Pansies, after the same manner.

(Green.) To make bladder green.
Pound the berries of the bramble call'd Rhamnus in a mortar, and sprinkle upon them a little powdered alum; then press or squeeze out the juice, and put it up in a bladder, which tie close, and leave it to dry till the Green is grown hard.

(Grey.) To make silk a brimstone white.
Boil the silk as for pearl colour, with the addition of a little blue sye, and for every pound of silk, add six ounces of soap; rinse the silk in it, wring it very well out of the dye, and hang it upon very white poles, and after that in a close room, setting a shovel or pot of fire under it; upon which strew brimstone, shut the room close, and the next morning dry it in the air.

Gummo resin, Gum rosin is a hardened juice of a middle resin; being both dissoluble in aqueous menstruums like a Gum, and in oily ones, like a resin.
Such are mastic, camphire, storax, &c.

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