The Ancient Volcanoes of Great Britain, Volume 1 (of 2)Note 348 — Chapter XVIII · STRUCTURE AND ARRANGEMENT OF THE LOWER OLD RED SANDSTONE VOLCANIC ROCKS IN THE FIELDReading editionSee Sheet 56 of the Geological Survey of Scotland.◇Copy noteReturn to CHAPTER XVIII STRUCTURE AND ARRANGEMENT OF THE LOWER OLD RED SANDSTONE VOLCANIC ROCKS IN THE FIELD