Gypsum Mining at Caledonia
File consists of an essay titled Gypsum Mining at Caledonia. Contains original photographs and diagrams
Smuck, H.
Mining at Macassa Gold Mine
File consists of an essay titled Mining at Macassa Gold Mine. Contains original diagrams
McCullough, J.G.
Floor Pillar Recovery at McIntyre
File consists of an essay titled Floor Pillar Recovery at McIntyre. Contains original diagrams
Sullivan, D.W.
Pillar Mining at Frood
File consists of an essay titled Pillar Mining at Frood. Contains original diagrams
Young, M.E.
Mining and Milling at the Young Davidson
File consists of an essay titled Mining and Milling at the Young Davidson. Contains original diagrams and photographs
Abraham, Earl M.
Steeprock Hematite Deposits
File consists of an essay titled Steeprock Hematite Deposits. Contains original photographs and diagrams
Sampson, R.E.