During the late medieval era, the Surrey whitewares pottery kilns were located near the Reading Formation, most notably the area between Farnham and Tongham The beds were an excellent source of white-firing clay.3
"The BGS Lexicon of Named Rock Units — Result Details: Reading Formation". British Geological Survey. Retrieved 5 February 2016. http://www.bgs.ac.uk/lexicon/lexicon.cfm?pub=RB ↩
Chisholm, Hugh, ed. (1911). "Woolwich-and-Reading Beds" . Encyclopædia Britannica. Vol. 28 (11th ed.). Cambridge University Press. p. 819. /wiki/Hugh_Chisholm ↩
Pearce, Jaqueline (1992). Border Wares. Post-Medieval Pottery in London 1500-1700. London: Museum of Londo. ISBN 978-0112904946. 978-0112904946 ↩