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49 (XLIX) — 1938-1939

Earthing Electrical Plant, 142.

Education and Safety, 89.

Elastic Behaviour of Rocks, 53.

Electric Cap-lamp Improvements, 54.

Electric Lamps, 54, 74, 122, 412.

Electric Lighting Order, 145.

Electric Lighting Units, 145.

Electrical Exploders, 158.

Electrical Inspector's Report, 86.

Electrical Machinery Inspection, 7.

Electrical Measurements, 126.

Electrical Units, 62.

Electricians, Certification, 137.

Electricity in Mines, 176, 195, 263, 369.

Electricity in Mines Committee, 277.

Electricity, Instruments for Testing, 78.

Empire Exhibition, Coal at, 72.

Employment, 1937 Conditions, 114.

Engineer, What Is, 375.

Engineering Progress, 172.

Engineering Students' Pointers, 75.

Equipment, Colliery, 149, 195.

Equivalent Orifice, 272.

Examination Notes, May, 65, 90, 106.

Examination Notes, November, 296, 314, 326.

Examination Notes, Surveyors, 49, 282.

Examination Results, 40, 264.

Examinations, Board for Mining, 3, 51, 53, 284.

Explosion, Dust Cause of, 93.

Explosions and Fires, 225, 234, 321, 344, 353.

Explosions, Arresting, 267.

Explosive, Selection of, 112.

Explosives, 15, 21, 37, 61, 146, 168, 178, 180, 188, 199, 258, 277, 322.

Explosives Order, 180.

Explosives Substitutes, 269.

Explosives, Accidents Due to, 152, 170, 369.

Explosives, Uses, 146, 331.