Wood, Nicholas, (1831). ‘Account of some Fossil Stems of Trees, found at Killingworth Colliery [Northumberland]’, extract from Trans Nat History Soc of Northumberland, Durham and Newcastle, v1,

Wood, Nicholas, (1831). ‘Account of some Fossil Stems of Trees, found penetrating through the Strat above the High Main Coal, at Killingworth Colliery [Northumberland], at a depth of 48 fathoms’, extract from Transactions of the Natural History Society of Northumberland, Durham and Newcastle upon Tyne, 1831. v1, pp 205-214 + 1 plate ‘ Sketch of the Fossil Stem of a Tree found at a depth of 48 fathomes; above the coal in the Workings of Kingllingworth Colliery, 1:360 scale. Text and plate age-toned and clean. In very good condition.