Geology.- Young (Rev. George) A Geological Survey of the Yorkshire Coast, first edition, large paper copy, engraved frontispiece, double-page Geological Map of Yorkshire Coast, double-page Section of the Strata from Spurn to Hartlepool, 17 lithographed plates, all but frontispiece hand-coloured, title a little browned, some occasional light foxing or staining, heaviest to frontispiece and map, one or two ink annotations, a few repairs to lower margins, Royal Society of Edinburgh ink stamps to title and frontispiece verso, nineteenth-century half-calf, spine fading, spine ends and corners a little bumped, a few stains to cover, rubbed a little to extremities, edges uncut, Whitby, at the Office of George Clark, 1822 § Phillips (John) A Map of the Principal Features of the Geology of Yorkshire, chromolithograph map printed in colours identifying geological strata of the county, 615 x 805 mm (24 1/4 x 31 3/4 in), dissected and mounted on linen, minor spotting and surface dirt, slightly rough edges, folding into original green cloth boards, upper cover gilt, rebacked, some scuffs and losses restored, worn, North Devon library label to inside upper cover, 1853, 4to & 8vo (2)