Note 2886 — BOOK XVII. THE NATURAL HISTORY OF THE CULTIVATED TREES.

This would rather seem to be a name borrowed from the Greek, αἰγλήεις, “shining,” and πελιὸς, “white.” Notwithstanding the resemblance, however, it is just possible that it may have been derived from the Gallic. Fée queries whether this is the schistoid calcareous marl, or the schistoid argillaceous marl, the laminæ of which divide with great facility, and the varieties of which display many colours.