Geological Map of England and Wales with all the Railways by Sir Robert Murchison, Director General of the Ordnance Survey, Published by Stanford London 1864. The 5th edition. On folding linen size 44 by 37 cm. in 12 sections. Scale 69 miles to the inch. Hand coloured and with a colour-coded key to 20 rock and soil types. Folds into original stiff boards with the title gold-stamped to the front. Some rubbing to spine and boards, signs of handling to the margins and occasional ink spotting to reverse but the map is in good condition.