The authorship of the "Discourse of several sorts of stones" by D.B. Gent. (p. 217-232) and the editorship of the entire work is attributed to Arnold de Boate. Cf. Dictionary of national biography.
Reproduction of original from Goldsmiths' Library, University of London.
Goldsmiths'-Kress no. 01294.
Electronic reproduction. Farmington Hills, Mich. : Thomson Gale, 2005. Available via the World Wide Web. Access limited to licensing agreements.