Detonators or caps not kept in magazine in coal mine. Explosives not to be prepared in storage magazine. Violations of law as to explosive storage, penalty. Bore holes required, when, where. Signaling and hoisting devices in shaft, safety requirements.
Coal dust controls.
Welding and cutting operations, ventilation, rock-dusting. Weighing regulations where coal miners paid by weight. Coal miners to be brought to surface for lunch period of hour, penalty. Coal miner's lien for wages. Applicability of sections 293.200 to 293.490.