Foul matter, like soot or coal dust; also, a spot or soil made by such matter.
Soot; coal dust; refuse matter, as the dirty grease which comes from axle boxes, or the refuse at the mouth of an oven.
His cheeks were hollowed; his skin was no longer a glistening bronze, but the dull black of coal dust.
He dropped flat again, and taking up handfuls of coal dust, rubbed it all over his clothes.
They might even see the white clothes, in spite of the coating of coal dust, before they came within reach.
He shall not place in the gob or refuse pile, or cover up, any fine coal or coal dust, but shall load same into cars.
Experiments on the Ignition of Fire-damp Mixtures and Clouds of Coal Dust by Electricity.
The importance that gas and coal dust firing have attained of recent years, and especially the great interest attaching of late to the question of coal dust firing, makes the appearance of the present volume most opportune.
Three cats sat by the fire-side, With a basket full of coal dust, Coal dust, coal dust, With a basket full of coal dust.
There is also a chapter on the chemical investigations into the ignition of coal dust by Dr.
Further chapters concern the tests as to the explosibility of coal dust, made by the Geological Survey, at Pittsburg; investigations, both at the Pittsburg laboratory and in mines, as to the humidity of mine air.
Tests to determine the relative safety, or otherwise, of the various explosives used in coal mining, when ignited in the presence of explosible mixtures of natural gas and air, or coal dust, or of both.
There is no probability of a dangerous explosion being produced by the ignition of coal dust by a naked light or ordinary flame.
The danger arising from the presence of coal dust in the air of dry mines, with or without the addition of fire-damp, has, since it was first pointed out by Professor W.
Coal dust alone, without any gas, may cause a dangerous explosion if ignited by a blown-out shot; but such cases are likely to be exceptional.
The danger of explosion when gas exists in very small quantities is greatly increased by the presence of coal dust.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "coal dust" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
