The Ancient Volcanoes of Great Britain, Volume 2 (of 2)Note 313 — Chapter XLII · THE BASIC SILLS OF THE BASALT-PLATEAUXReading editionFor a list of the minerals in this rock, see Oldham, op. cit. p. 151.◇Copy noteReturn to CHAPTER XLII THE BASIC SILLS OF THE BASALT-PLATEAUX