Note 398 — Chapter XXII · VOLCANOES OF THE UPPER OLD RED SANDSTONE—THE SOUTH-WEST OF IRELAND, THE NORTH OF SCOTLAND

There appear to be traces of volcanic eruptions contemporaneous with the Upper Old Red Sandstone of Berwickshire, but as they merely formed a prelude to the great volcanic activity of Carboniferous time, they are included in the account of the Carboniferous plateau of Berwickshire in Chapters xxiv. and xxv.