The Ancient Volcanoes of Great Britain, Volume 1 (of 2)
CHAPTER XX
Volcanoes of the Lower Old Red Sandstone of "Lake Caledonia"--_continued_
The Southern Chain--The Pentland Volcano--The Biggar Centre--The Duneaton Centre--The Ayrshire Volcanoes 317
The Ancient Volcanoes of Great Britain, Volume 1 (of 2)
Volcanoes of the Lower Old Red Sandstone of "Lake Caledonia"--_continued_
The Southern Chain--The Pentland Volcano--The Biggar Centre--The Duneaton Centre--The Ayrshire Volcanoes 317