Plate, diagram of systems of joints of Waterford, Donegal, and the Mourne and Newry Mountains by Rev S [Samuel] Haughton Figure 5 showing a circular diagram of the systems of joints of Waterford [Ireland], Donegal [Ireland], and the Mourne and Newry Mountains [County Down, Northern Ireland]. Subject: Geology Published in Philosophical Transactions as 'On the joint-systems of Ireland and Cornwall, and their mechanical origin'. Received by the Royal Society on 8 February 1864. Read 25 February 1864. 1864