John Allen Howe

“ The sandy portions are very variable; the stone is often clayey and calcareous and rarely hard enough to make a good building stone; locally it is called “hassock” (or Calkstone) . The two stones are well exposed in the Iguanodon Quarry near Maidstone (so called from the discovery of the bones of that reptile) . South-west of Dorking sandstone and grit become more prevalent, and it is known there as “Bargate stone,” much used around Godalming. ”

“ Outside the southern area the Lower Greensand is represented by the Faringdon sponge-bearing beds in Berkshire, the Sandy and Potton beds in Bedfordshire, the Shotover iron sands of Oxfordshire, the sands and fuller’s earth of Woburn, the Leighton Buzzard sands, the brick clays of Snettisham, and perhaps the Sandringham sands of Norfolk, and the carstone of that county and Lincolnshire. The upper ironstone, limestone and clay of the Lincolnshire Tealby beds appear to belong to this horizon along with the upper part of the Speeton beds of Yorkshire. ”