From The Long Lost Friend:
A Wick Which Is Never Consumed
Take an ounce of asbestos and boil it in a quart of strong lye for two hours; then pour off the lye and clarify what remains by pouring rain-water on it three or four times, after which you can form a wick from it which will never be consumed by the fire.
The grimoire The Long Lost Friend lists this spell.
Timeline of related events
1820Publication of Hohmann's Long Lost Friend (lists this spell)