Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Royal Agricultural College, 2 canlyniadau
- Margam Estate (Wales), 1 canlyniadau
- Hills-Johnes, Elizabeth, 1834-1927, 1 canlyniadau
- Davys family, of Neuadd-fawr, 1 canlyniadau
- North and South Wales Bank., 1 canlyniadau
- Playfair, Lyon Playfair, Baron, 1818-1898, 1 canlyniadau
- Ramsay, Elizabeth, 1 canlyniadau
- Museum of Economic Geology, 1 canlyniadau
- Sharpe, James, Glasgow, 1 canlyniadau
- Williams, W. R. Stuart, 1 canlyniadau
- Pob un
- Lead mines and mining -- Wales -- Ceredigion, 1 canlyniadau
- Scotland -- Description and travel, 1 canlyniadau
- Astronomy, 1 canlyniadau
- France -- Description and travel, 1 canlyniadau
- Allt Ogofau (Cynwyl Gaeo, Wales), 1 canlyniadau
- Dolaucothi Estate (Wales), 1 canlyniadau
- Gold mines and mining -- Wales -- Carmarthenshire, 1 canlyniadau
- Volcanoes., 1 canlyniadau
- Earthquakes., 1 canlyniadau
- Astronomy -- Maps., 1 canlyniadau
