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48 (XLVIII) — 1937-1938

Early Mining Notes, 356.

Early Use of Coal, 309.

Economisers, Inspection, 215.

Education, Mine Workers, 26, 117.

Eisteddfod Mining Section, 261.

Electrical Hand Lamps, 81.

Electrical Power, Coal-cutters, 365.

Electrical Problems, 328.

Electrical Terms, 14.

Electrical Transmission, 4.

Electricity and Fire Risks, 344, 412.

Electricity at Face, 332.

Electricity Memorandum, 135.

Electricity Regulations, 376.

Electricity Report, Inspector's, 82.

Electricity, Growing Use, 387.

Electricity, Precautions, 366.

Empire Exhibition, 327, 339.

Employment Conditions, 100.

Employment Statistics, 167.

Endless Rope Haulage, 130.

Engine Calculations, Fan, 227.

Engine Efficiency, Steam, 143.

Engineering as Profession, 401.

Engineering in General Life, 41.

Environmental Warmth, 17.

Examination Notes (Managers), 74, 86, 98, 298, 306.

Examination Notes (Surveyors), 58, 273.

Examination Results (May), 35.

Examination Results (November), 264.

Examinations, Mining, 168.

Exhibit, Fuel Research, 147.

Exhibition at Cardiff Museum, 377.

Expansion of Solids, 18.

Expansion, Superficial and Cubical, 34.

Exploders, 42.

Explosibility, Coal Dust, 137.

Explosions in Mines, 113, 138, 348.

Explosions, Causes, 139.

Explosives in Coal Mines, 24, 40, 68, 83, 258, 265.

Explosives Questionnaire, 101.

Explosives Statistics, 20.

Explosives, Accidents Due to, 228.

Explosives, Detonation, 164.

Explosives, Flame, 253.

Explosives, Substitutes, 10, 20, 42.