Issue 26 and Volume 1887 1.

DUST EXPLOSIONS. THE destruction of some of the large flour mills at Minneapolis several years ago developed the fact that the dust of flour floating in the air is highly explosive. Scientists made a study of the conditions presented and, by numerous interesting experiments, demonstrated that the dust from almost any vegetable substance is explosive. This accounted for the destruction of many flour mills, starch factories and wood-working establishments. The imprisonment of a hundred miners in a burning coal-pit on Vancouver’s Island is one of a long series of similar disasters. When the safety lamp was invented in England many years ago, it was universally considered a sure preventive of explosions from fire-damp or coalgas, by which thousands of miners had been killed. The frequency of explosions in England, Pennsylvania and elsewhere, where the safety lamp is in general use, indicates that there are other dangers which have not been…

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