The Ancient Volcanoes of Great Britain, Volume 1 (of 2)
CHAPTER XVII
Distribution of the Volcanic Centres in the Lower Old Red Sandstone--Characters of the Materials Erupted by the Volcanoes 271
The Ancient Volcanoes of Great Britain, Volume 1 (of 2)
Distribution of the Volcanic Centres in the Lower Old Red Sandstone--Characters of the Materials Erupted by the Volcanoes 271