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57 (LVII) — 1946-1947

Cage Attachments, 252, 259.

Cage Guides, 270.

Cambrian Rocks, 115.

Carbon Dioxide, Detection, 15, 45.

Carbon Monoxide, Detection, 15.

Carbon Monoxide, Effects of Breathing, 61.

Carboniferous System, 145, 152.

Carlton Joint, 299.

Centenary of Famous Engineer, 15.

Centrifugal Fan, Performance of, 270.

CH4 Maximum Yield, 214.

Chain Surveying, 110, 136.

Chalmers, Mr. R. M., 14.

Changing Flexible Conductor, 156.

Charles' Law Apparatus, 111.

Circle, 13, 100.

Classical "Washouts," Diagnosing, 30.

Classification of Rocks in British Isles, 115, 128, 134.

Clinometer, 110.

Closing Line, Length and Breadth of, 37.

Coal Dust, 2, 98, 159, 224.

Coal in Leasehold, 285.

Coal Measure "Erratics", 217, 229.

Coal Measure Fossil Animals, 181.

Coal Measure Fossil Plants, 200, 206.

Coal Measures, 161.

Coal Pebbles, 217.

Coal Royalties' Calculation, 29.

Coal Seam Discovered in Garw Valley, 114.

Coal Seam Structures, 266.

Coal Seams, Formation of, 74, 86, 102.

Coal, Quality of, 288.

Coal-balls, 217.

Coalburster, 23, 58, 263.

Coal-cutter Chain and Picks, 227.

Coking Practice, Experiments on, 91.

Competition, Prize, 10, 22, 34, 45, 58, 70, 82, 93, 105, 118, 129, 142, 154, 166, 178, 180, 202, 213, 226, 238, 250, 262, 274, 286.

Competition, Prize, Awards, 291.

Competitor, Successful, 29.

Compressed Air, 267, 282, 287, 288, 296.

Compressed Air Drill, 283.

Compressed Air Pumps, 246.

Conductor in Magnetic Field, 12.

Constitution and Classification of Coal, 248, 255.

Controlling Speed of Haulage, 191.

Conveyors, 69, 269.

Correction of Error in Levelling, 17.

Cretaceous Rocks, 129.

Cross-measures Drift, Length, etc., 28, 53.