Geology.- Ritchie (Archibald Tucker) The Dynamical Theory of the Formation of the Earth, 2 vol., 8pp. list of subscribers at end vol. 2, bookplate of Library of the Royal Artillery with small ink references, title and endpapers with light browning or staining to inner-margin, some soiling to endpapers, some spotting, mainly to first and last few leaves, margins very slightly toned, vol. 1 upper hinge cracked, original cloth, few very small stains, some chipping and small loss to spine ends, rubbed, some splitting and few small portions of loss to joints, Longman, Brown, Green & Longmans, 1850 § Owen (Richard) A History of British Fossil Mammals, and Birds, half-title, illustrations, bookplate removed, light browning to half-title, small stain to head near start, spotting to endpapers and first few ff., light marginal toning, contemporary half calf, rebacked in modern calf, wear to corners, covers rubbed, John Van Voorst, 1846, first editions; and 2 others, a composite volume of various pamphlets and extracts relating to geology and archaeology by T. McKenny Hughes, and Rutherford on Radio-Activity (1904), 8vo (5)