The Ancient Volcanoes of Great Britain, Volume 2 (of 2)Note 171 — Chapter XXXIV · THE SYSTEM OF DYKES IN THE TERTIARY VOLCANIC SERIESReading editionMikroskopische Physiographie, 3rd edit. 1071 et seq.◇Copy noteReturn to CHAPTER XXXIV THE SYSTEM OF DYKES IN THE TERTIARY VOLCANIC SERIES