The Carboniferous Puys of Scotland
i. General Character and Distribution of the Puys; ii. Nature of the Materials Erupted--Lavas Ejected at the Surface--Intrusive Sheets--Necks and Dykes--Tuffs 414
The Ancient Volcanoes of Great Britain, Volume 1 (of 2) · The Wunder Library — complete classics, free to read, with narration.