Show why flour explodes records of the lie lust last ten tell years show lint about twenty explosions have occurred ili cereal lour flour und and feed mills with etli the loss of worth ot of property as well as the or lu in juring ot of over two hundred undred li investigations regarding the causes of these explosions und subsequent suli sequent ires fires lieve nie not proved what ora the to bo be avoided in eight cases the explosions tire lire believed to luno froin the sparks produced in the lie machines during tile grinding process tiny particles cles of 0 gravel or metallic substances c coining into coli contact tact with the plates of tilt nin ma chalrie way produce enough spars to ignoto tin tile dust durt within the wit witching chine another po cause for epical cereal dust suggested Is tho the use ot of naked flames i |