Chapter 68 of This Book.

“Grape-cluster stone.”

“Puniceus” seems to be a preferable reading to “pampineus,” “like a vine-tendril,” given by the Bamberg MS.

Possibly it may have been Datholite or Borate of lime, a variety of which is known as Botryolite.

“Hair-stone.” This was probably either Iron alum, known also as Alun de plume; Alunogen, known also as Feather Alum or hair salt; or Amianthus, also called satin Asbestus. See B. xxxvi. c. 31.

“Ox-heart.” Supposed to be a sort of Turquois, Hardouin says.

“Thunder-stone.”

“Clod-stone.” It may possibly have been a kind of Geodes. See B. xxxvi. c. 32. Dalechamps, however, identifies it with Crapaudine, Toad-stone, or Bufonite, supposed in former times to be produced by the toad, but in reality the fossil tooth of a fish.

See B. iii. c. 4.

See B. xxxiv. c. 22, and Chapter 65 of this Book.

Identical, probably, with the Callaina of Chapter 33, our Turquois.

Lapis lazuli.

“Smoke-stone.” Identical with the jasper called “capnias,” in