Show I HOW DUST CAUS CAUSES S FIRES i i Spontaneous combustion is caused so the chemists tell us by floating particles of coal dust or other inflammable inflammable mable material jostling and clashing j against one another until the friction i I they set up raises their temperature j I to the ignition point says Popular I j Science Monthly If this explanation is correct it would appear as if such fires could be prevented b by perfect ventilation Such however is not the case for ventilation may actually help I Ito to bring about fire by spontaneous combustion Air facilitates oxidation really fanning the warm dust into a abla I bla blaze e. e Keep air damp and quiet to toa a avoid void fire I |