Walter R Crane | Akateeminen Kirjakauppa

Ore mining methods comprising descriptions of methods of support in extraction of ore, detailed descriptions of methods of stoping and mining in narrow and wide veins and bedded and massive deposits including stull and square-set mining, filling and cavin This book, "Ore mining methods", by Walter R. Crane, is a replication of a book originally published before 1910. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.