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53 (LIII) — 1942-1943Temperature, Factors Affecting, 262. Thermodynamics, 234. Things to Remember, 269. Timber and Steel Economy, 125. Timber in Mines, 57. Traction, Frictional Resistance to, 7. Training Centres, 188. Training Scheme, Boys, 14. Training Schemes, 39. Tunnelling, 292, 301. |
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