On the "Lingula flags" or "Festiniog group" of the Dolgelly district
By: by Thomas Belt.
Publisher: Stephen Austin, Printer
Published: 1868
Place of publication: [Hertford
Language: eng
Number of pages: 16
Subjects: Geology -- Wales -- Dolgellau.; Fossils -- Wales -- Dolgellau.
Notes: Imprint from colophon.

At head of title: "Reprinted from the Geological Magazine, vol.IV, no.11, November; no.12, December, 1867; and vol.V, no.1, January, 1868".

Caption title.