St. Patrick's Purgatory, Lough Derg.  Its History, Traditions, Legends, Antiquities, Topography, and Scenic Surroundings. With some Account of its more Notable Pilgrims, and a Detailed Description of the Authorised Devotions Performed at its Venerable Shrine. An Enlarged and Revised Edition with Numerous Plates and Illustrations. Dublin: Duffy, [1903]  Pp xxi, 256. Original decorated paper boards, lightly soiled, contents in fie condition.  Lough Derg, a Christian pilgrimage site on Station Island, County Donegal. The first edition was publishe in 1895.