The Ancient Volcanoes of Great Britain, Volume 1 (of 2)Note 409 — Chapter XXIII · THE CARBONIFEROUS SYSTEM OF BRITAIN AND ITS VOLCANIC RECORDSReading editionMem. Wern. Soc. vii. p. 1. Published separately, 1838.◇Copy noteReturn to CHAPTER XXIII THE CARBONIFEROUS SYSTEM OF BRITAIN AND ITS VOLCANIC RECORDS