A History of the County of Cambridge and the Isle of Ely
… only modern industrial activity was that of the Melbourn Whiting Co. In 1949 it began digging at the ancient parish … excavating 4,000 tons of chalk a year for conversion to whiting. In the 1970s it produced over 50,000 tons a year of powdered chalk for whiting at its Steeple Morden works. 344 Two mills belonged …