Taylor, J.H., (1949). Petrology of the Northampton Sand Ironstone Formation. Memoir of the Geological Survey
Taylor, J.H., (1949). Petrology of the Northampton Sand Ironstone Formation. Memoir of the Geological Survey of England and Wales. London: HMSO, first edition. 111pp. HB, light brown cloth-covered boards. Clean text, light age-toning. Cover slight worn and soiled, corners bumped. 10 figures, 7 photographic plates, of which 3 in colour. In good condition.
Still, in 2024, the current edition at £43 from BGS.