through coal
21Coal tax post — Coal tax posts were marker posts, about 250 in number, first erected in 1851 and forming a rough circle about twenty miles from the centre of London, England, to mark the points where taxes on coal and wine due to the Corporation of London had to …
22Coal Mines Historic Site — View of ruins in the Coal Mines area. Type Historic Site Location Saltwater Creek Rd, Little Norfolk Bay, Tasman Peninsula …
23Coal Creek (British Columbia) — Coal Creek is a tributary of the Elk River. Their confluence is in the city of Fernie, British Columbia.[1] Coal Creek passes through its namesake, Coal Creek, British Columbia, today a ghost town. See also Coal Creek (disambiguation) References… …
24Coal breaker — A coal breaking plant, depicted on a postcard in 1907. A coal breaker was a coal processing plant which broke coal into various useful sizes. Coal breakers also removed impurities from the coal (typically slate) and deposited them into a culm… …
25coal utilization — Introduction combustion of coal or its conversion into useful solid, gaseous, and liquid products. By far the most important use of coal is in combustion, mainly to provide heat to the boilers of electric power plants. Metallurgical coke… …
26Coal Seams of the South Yorkshire Coalfield — The coal seams worked in the South Yorkshire coalfield lie mainly in the middle coal measures. These are a series of mudstones, shales, sandstones, and coal seams laid down during the Carboniferous period about 350 million years ago. The total… …
27Coal seam fire — A coal seam fire near Denniston, New Zealand A coal seam fire or mine fire is the underground smouldering of a coal deposit, often in a coal mine. Such fires have economic, social and ecological impacts. They are often started by lightning, grass …
28Coal Strike of 1902 — The Coal Strike of 1902 was a strike by the United Mine Workers of America in the anthracite coal fields of eastern Pennsylvania. Miners were on strike asking for higher wages, shorter workdays, and the recognition of their union. The strike… …
29Coal mining — Men leaving a UK colliery at the close of a shift Surface coal mining in Wyo …
30coal — coalless, adj. /kohl/, n. 1. a black or dark brown combustible mineral substance consisting of carbonized vegetable matter, used as a fuel. Cf. anthracite, bituminous coal, lignite. 2. a piece of glowing, charred, or burned wood or other… …
