Note 216 — Note xxii. § 123.
Reading edition
See Mr Collinson's papers, above referred to. Phil. Trans. vol. lvii.
[217] Phil. Trans. vol. lviii. p. 3, &c.
[218] A fossil grinder in the collection of John Macgowan, Esq. of Edinburgh, answers nearly to Mr Collinson's description, and is very well represented by the figure which accompanies it. This grinder weighs four pounds one-fourth avoirdupois; the circumference of the corona is eighteen inches; the coat of enamel is one-fourth of an inch thick; there are five double teeth; in Mr Collinson's specimen there are only four.