The Ancient Volcanoes of Great Britain, Volume 2 (of 2)Note 417 — Chapter XLVII · THE ACID BOSSES OF MULL, SMALL ISLES, ST. KILDA, ARRAN AND THE NORTH-EAST OF IRELANDReading editionAnn. Rep. of Geol. Surv. for 1894, p. 286.◇Copy noteReturn to CHAPTER XLVII THE ACID BOSSES OF MULL, SMALL ISLES, ST. KILDA, ARRAN AND THE NORTH-EAST OF IRELAND