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51 (LI) — 1940-1941
Dams, Brickwork, 239.
Dangerous Occurrences, 15.
Deepening Maypole Shafts, 266.
Depths, Mine Atmospheres, 183.
Deputies and Safety, 19.
Derbyshire (South) Coal, 195.
Detonators and Missfires, 270.
Development Problems, Ventilation, 280.
Dialling, 116.
Differential Ram Pump, 169.
Diffusion of Gases, 173.
Dip and Strike Problems, 134.
Dip Workings, Dewatering, 285.
Double-acting Pumps, 169.
Dressings, First Aid, 213.
Drift, Cross-measure, 254.
Drill Steels, 206.
Drilling Dust Problems, 85.
Drills Compared, 48.
Driving Wheel, 46.
Dust Analysis, 127.
Dust and Slurry Problems, 70.
Dust Experiments with Sprays, 114.
Dust Sampling, Rand, 416.
Dust, Allaying, 135.
Dust, Fibrosis-producing, 43.
Dust, Loading-point, 26.
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