Note 15 — Chapter VI
Archibald Lovell translation
Cf. the "sixth means" in the play: "Or else, I could have placed myself upon an iron plate, have taken a magnet of suitable size, and thrown it in the air! That way is a very good one! The magnet flies upward, the iron instantly after; the magnet no sooner overtaken than you fling it up again.... The rest is clear! You can go upward indefinitely."