Durable Ink For Marking Linen Recipe

Dissolve a couple of drachms of lunar caustic, and half an ounce of gum

arabic, in a gill of rain water. Dip whatever is to be marked in strong

pearl-ash water. When perfectly dry, iron it very smooth; the pearl-ash

water turns it a dark color, but washing will efface it. After marking

the linen, put it near a fire, or in the sun, to dry. Red ink, for

marking linen, is made by mixing and reducing to a fine powder half an

ounce of vermilion, a drachm of the salt of steel, and linseed oil to

render it of the consistency of black durable ink.

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