Published online by Cambridge University Press: 01 May 2009
The River Amber on its way from the Erewash Valley Coalfield to its junction with the Derwent near Ambergate crosses the upturned edges of the Millstone Grit Series. Near the point where the river enters the grit belt at Bullbridge a boring for water was put down in the grounds of the Amber Dye Works during the latter half of the year 1936. My thanks are due to the directors of Stevensons (Dyers), Limited, for giving me every facility for examining the core, and to Mr. S. G. Clift for assisting me in the examination and in collecting. My thanks are also due to Dr. C. J. Stubblefield for valuable criticisms and suggestions during the writing up of this note.