Sheet Memoir 100. (1975) Geology of the Country around Sheffield by Eden, R.A. et al. BGS. 238pp. 2ndimpression of 1st edition of 1955.Sheet Memoir 100. (1975) Geology of the Country around Sheffield by Eden, R. A. et al. Geological Survey of Great Britain, now BGS. 238pp. Second impression of first edition of 1955. Hardback, orange cloth covered boards without dust jacket. Negligible wear to cover, text clean, unmarked In fine condition. Still, in 2025, the current edition, but available from BGS only as Print On Demand copy @ 40.