PORTLOCK, J. E. - Report on the Geology of the County of Londonderry, and of Parts of Tyrone and Fermanagh.

London, Andrew Milliken; Hodges and Smith; Longman, Brown, Green, and Longmans. 1843. Cloth, 8vo Thick. Spine tanned with some splitting, boards rubbed, bumped, and sunned. Hinges split, some foxing, some marks to closed edges, some chipping to edges of maps, otherwise maps tidy, pp clean and bright. Good Minus.