Note 23 — Chapter VI · The Grateful Dead and The Water of Life or Kindred Themes.
Reading edition
The ship that will travel equally well on land and water is seemingly a common trait in forms of The Skilful Companions. See the variant cited from Bladé on p. 125, note 3. It occurs in a curious tale from Mauritius, given by Baissac, Le Folk-lore de l’Île-Maurice, 1888, p. 78.