The Ancient Volcanoes of Great Britain, Volume 2 (of 2)
CHAPTER XXXI
The Permian Volcanoes of Scotland
Geographical Changes at the Close of the Carboniferous Period--Land and Inland-Seas of Permian time--General Characteristics and Nature of the Materials erupted--Structure of the several Volcanic Districts: 1. Ayrshire, Nithsdale, Annandale; 2. Basin of the Firth of Forth 53