Oil of Nightshade, is made of the berries of Nightshade ripe, and one part boiled in ripe oil, or oil of Roses three parts.

Oil of Styrax, is made of Styrax and sweet white Wine, of each one part, ripe oil four parts gently boiled till the Wine be consumed.

Oil of Violets, is made of oil omphacine, and Violet flowers, as oil of Roses.

Oil of Vervain, is made of the herb and oil, as oil of Mints.

Culpeper : That most of these oils, if not all of them, are used only externally, is certain; and as certain that they retain the virtues of the simples whereof they are made, therefore the ingenious might help themselves.