Word: combustible
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Dates: during 1920-1929
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...grade, the Gillette coal is a sub-bituminous kind called black lignite-tough, deliquescent, easily crumbled when exposed to air, when it also tends to combust spontaneously. Storage of it requires a special technic, but since one-third of its weight is water it is cheaply shipped after treatment. Valuable by-products result and the coal itself-or some like it-has been found serviceable in specially built locomotives, by the C. B. & Q. and the Chicago & Northwestern R. R.'s Much of the Gillette field is owned by the U. S., which can lease it under the mineral...
...discussed at length the factors that influence burning, showing how, by the addition of certain third substances, such things as iron could be made to combust and burn. Many different forms of flames were illustrated on a big table raised on the platform and Professor Lamb produced one mass of flame which he calmly held in his hand and picked to pieces...