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.  Dublin: Duffy, 1931. Fifth Edition. Pp xxi, 256. Publisher’s decorated paper boards, a nice bright copy.

An Enlarged and Revised Edition with Numerous Plates and Illustrations.

Lough Derg, a Christian pilgrimage site on Station Island, County Donegal. The first edition was published in 1895.