Bassett, M.G. 1982. Formed stones, folklore and fossils . National Museum of Wales. Geological Series No. 1, Cardiff.
Brookes, R. 1763. A new and accurate system of natural history. J.Newbery, London.
Evans, G.E. 1966. The Pattern under the Plough. Aspects of the Folk-Life of East Anglia . Faber & Faber, London, 269pp.
Gould, S.J. 2000. The Jew and the Jew stone. Natural History Magazine 6 :26-38.
Kennedy, C.B. 1976. A fossil for what ails you. The remarkable history of fossil medicine. Fossil Magazine 1 (1): 42-57.
Lebrun, P. 2000. Oursins 2. Minéraux & Fossiles , Hors-Série 10 : 1-224.
Lindahl, C., McNamara, J., and Lindow, J. 2000. Medieval Folklore: An Encyclopedia of Myths, Legends, Tales, Beliefs, and Customs.Vol 1: A-K . ABC-CLIO, Oxford, 574 pp.
Nicols, T. 1659. Gemmarius Fidelius, or the Faithful Lapidary, Experimentally describing the richest Treasures of Nature in an Historical Narration. Of the several Natures, Vertues and Qualities of all Pretious Stones. With an Accurate discovery of such as are Adulterate and Counterfeit . Henry Marsh, London, 239pp..
Oakley, K.P. 1974. Folklore of fossils. The New York Paleontological Society Notes . 5 (1-2):11-20.
Russell, M. 2003. John Henry Pull and Shepherd's Crowns. West Sussex Geological Society, Occasional Publication No. 3 , 39 pp.
Taylor, P. D. 2000. Two passages to India. Pp. 107-126. In Whybrow, P.J. (ed.) Travels with the Fossil Hunters . Cambridge University Press, Cambridge.
The Echinoid Directory