Show Keeping Down Mine Dust The presence of dust In mines Is disagreeable disagreeable dis agreeable from many standpoints besides besides be be- sides being a positive menace from its It ft explosive qualities Efforts are made more than ever eer to keep the mine dust down and It has been discovered In the case of one mine In Kentucky that excellent results were obtained h b bj sprinkling the empty coal cars The operation Is performed automatically as the cars are moved along after being beIng belag be be- ing lag dumped and find the difference In t the e atmosphere of the mine was apparent apparent to all 9 |