The Ancient Volcanoes of Great Britain, Volume 1 (of 2)Note 458 — Chapter XXVII · GEOLOGICAL STRUCTURE OF THE CARBONIFEROUS PUYS OF SCOTLANDReading editionExplanation of Sheet 22, Geol. Surv. of Scotland, p. 16.◇Copy noteReturn to CHAPTER XXVII GEOLOGICAL STRUCTURE OF THE CARBONIFEROUS PUYS OF SCOTLAND