One may not pierce an eggshell, fill it with oil, and put it over the mouth of a lamp so that it [the oil] will drip, even if it [the container] is of earthenware. But R’ Yehudah permits [this]. However, if the potter attached it originally, it is permitted, be-cause it is a single vessel. One may not fill a bowl with oil, put it beside a lamp, and put the end of the wick into it [the bowl] so that it will draw [oil]. But R’ Yehudah permits [this].