Acknowledgements
Administrative summary
Introduction
Chapter one. A steam traction engine : winter hauling at Washington Creek
Chapter two. A steam donkey engine : excavating paydirt at fourth of July Creek
Chapter three. Steam boilers : the gold miner's battle with ice
Chapter four. Gold dredges : mining on an industrial scale
Chapter five. Prospecting drills : a machine for finding gold
Chapter six. Caterpillar-style tractors : the all-purpose mining machine
Conclusion.