Plague, or Four Thieves’ Vinegar.
Take rue, sage, mint, rosemary, wormwood, and lavender, of each a large handful; put them into a stone jar, with a gallon of the best vinegar; tie it down very close, and let it stand a fortnight in the sun, shaking the jar every day. Bottle it, and to every bottle add a quarter of an ounce of camphor, beaten very fine. The best time to make it is in June or July.