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59 (LIX) — 1948-1949
Railway Cutting, Volume of, 47.
Rectangular Co-ordinates, 47.
Relative Humidity, 189, 218, 256.
Remote Control, 24, 49.
Removing Firedamp Accumulation, 46.
Resection, Problem in, 302.
Resuscitation, 205, 222.
Reviving Apparatus, 222.
Rhythmic Succession, 83.
Ringrose Automatic Detector, 71, 203.
Road Dust Consolidation, 125.
Rocking Stretcher, 205.
Royalty, Coal in, 22, 239.
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