Note 2533 — BOOK XXIX. REMEDIES DERIVED FROM LIVING CREATURES.

Pliny alludes here to the beads or rings of glass which were used by the Druids as charms to impose on the credulity of their devotees, under the name of Glain naidr, or “the Adder gem.” Mr. Luyd (in Rowland’s Mona Antiqua, p. 342) says that the genuine Ovum anguinum can be no other than a shell of the kind called echinus marinus, and that Dr. Borlase observes that, instead of the natural anguinum, artificial rings of stone, glass, and sometimes baked clay, were substituted as of equal validity. The belief in these charms very recently existed in Cornwall and Wales, if indeed it does not at the present day. The subject is very fully discussed in Brand’s Popular Antiquities, Vol. III. p. 286, et seq., and p. 369, et seq., Bohn’s Edition. These gems and beads are not uncommonly found in tumuli of the early British period.