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cc185-6
- BRITISH AND POLISH TRADE. 46 words c186
- STONEDUST. 235 words cc186-7
- NATIONAL INDUSTRIAL BOARD. 331 words cc187-8
- DEEP MINES (TEMPERATURE). 197 words cc188-9
- SAFETY REGULATIONS. 212 words c189
- CLOSED PITS (WATER ACCUMULATION). 205 words cc189-90
- STATISTICS (YORKSHIRE). 71 words c190
- SUBSIDENCE. 166 words