Observations on the West of England Mining Region Being an Account of the Mineral Deposits and Economic Geology of the Region, and Forming of the Transactions of the Royal Geological Society of Cornwall; Volume XIV Collins, Joseph Henry Heftet / 2017 / Engelsk
Handbook to the Mineralogy of Cornwall and Devon, Etc. - Scholar's Choice Edition Collins, Joseph Henry Heftet / 2015 / Engelsk
Observations on the West of England Mining Region Being an Account of the Mineral Deposits and Economic Geology of the Region, and Forming Vol. XIV of the Transactions of the Royal Geological Society of Cornwall - Scholar's Choice Edition Collins, Joseph Henry Heftet / 2015 / Engelsk
Handbook to the Mineralogy of Cornwall and Devon With Instructions for Their Discrimination and - Scholar's Choice Edition Collins, Joseph Henry Heftet / 2015 / Engelsk
Handbook to the Mineralogy of Cornwall and Devon, Etc Collins, Joseph Henry Innbundet / 2025 / Engelsk
Observations on the West of England Mining Region Being an Account of the Mineral Deposits and Economic Geology of the Region, and Forming Vol. XIV of the Transactions of the Royal Geological Society of Cornwall Collins, Joseph Henry Innbundet / 2015 / Engelsk
First Book of Mineralogy For Use in Science Classes and Higher and Middle Class Schools - Scholar's Choice Edition Collins, Joseph Henry Heftet / 2015 / Engelsk
