Show Ct D O o 0 O Ct HH t Dust Now v Now Recognized Recognizer as Powerful Explosive I well less generally It Is more or known that oil all dust accumulations rep represent represent represent resent a 0 menace of no mean lUan proportions and many man Ions Dust Is explosive mills nulls were wrecked J by this tills power before the lire real cause Cluse was Swat un the mine for Instance In n II explosion taking place C In one cham chamber the lie next tind so on her ber was carried t to until the lie explosive force furce swept Through tine entire mine unit and the were wrecked completely It Is only within u comparatively few tew years It u was as that hut this II t destruction was conducted h subterranean passages CS h by the of o dust on the walls alls and In the crevices Now this thia Is avoided 11 b by u II coating coming which Is sprayed on and und which prevents presents the lie dust thus In the case or of from groin grain mills s i the damage done by these lese I bursts was particularly severe Sc and Ih the I government o agencies have ht bet Oln n giving 1 considerable attention to 10 the he study or II orthe these the e m mysterious blasts In the Hie course of I some experiments It 1 was found slide sible to 10 drive on an pos i engine b the use of finely by i corn IIII dust dust I |