Candle-wick

"Accordingly, the next day I came provided with six large candles of my own making (for I made very good candles now of goat’s tallow, but was hard set for candle-wick, using sometimes rags or rope-yarn, and sometimes the dried rind of a weed like nettles); and going into this low place I was obliged to creep upon all-fours as I have said, almost ten yards—which, by the way, I thought was a venture bold enough, considering that I knew not how far it might go, nor what was beyond it."