CHAPTER XXI. Volcanoes of the Lower Old Red Sandstone of the Cheviot Hills,

Volcanoes of the Lower Old Red Sandstone of the Cheviot Hills, Lorne, "Lake Orcadie" and Killarney 336

CHAPTER XXII

Volcanoes of the Upper Old Red Sandstone--The South-West of Ireland, the North of Scotland 348

BOOK VI

THE CARBONIFEROUS VOLCANOES

CHAPTER XXIII

The Carboniferous System of Britain and its Volcanic Records

Geography and Scenery of the Carboniferous Period--Range of Volcanic Eruptions during that time--I. The Carboniferous Volcanoes of Scotland--Distribution, Arrangement and Local Characters of the Carboniferous System in Scotland--Sketch of the Work of previous Observers in this Subject 355