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s <br />Drainage effected v;ith "now pump iu nhaft at 150 .ft.le vel raising we <br />er to turne] level. <br />Ventilation-nstural. <br />Ganitsry conditimre ,o od. ~ , <br />ixita- i?:ti se from tunnel. level to surface vest of .shaft. <br />Underground lighting-candles. <br />