Note 362 — Chapter XIX · VOLCANOES OF THE LOWER OLD RED SANDSTONE OF "LAKE CALEDONIA"
Reading edition
See Sheet 66 Geological Survey of Ireland, and Explanation to that sheet (1878), p. 15. The rocks were previously described by Jukes and Foot, Journ. Roy. Geol. Soc. Ireland, vol. i. (1866), p. 249.