Sheet Memoir 231. Merthyr Tydfil (Geology of the South Wales Coalfield, part V), by Strahan, A et al, 1933.

Merthyr Tydfil (Geology of the South Wales Coalfield, part V), by Strahan, A et al, 1933. 2nd edition, 289 + xx pp, hardback in buff cloth covered. Worn, bumped, loose hinges, library stamps. Occasional pencil notes. In fair to good condition. (covers Sheet 231 New Series)

About the England & Wales Sheet Memoirs

These 20th century reports, specific to the one inch geological map for the area, were published by the Geological Survey of England and Wales.