The Encyclopedia Americana: The International Reference Work, Volume 7Americana Corporation, 1955 - Encyclopedias and dictionaries |
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Page 145
... coal , mineral - matter - free basis . 3 The major distinction between lignite and brown coal is that the former is consolidated , while the latter is unconsolidated . coal which falls outside the range of the classifi- cation. able ...
... coal , mineral - matter - free basis . 3 The major distinction between lignite and brown coal is that the former is consolidated , while the latter is unconsolidated . coal which falls outside the range of the classifi- cation. able ...
Page 155
... coal , but this disadvantage is offset by the presence of fewer fines under 1/4 inch , which is the hardest size range to clean and sell . Coal Preparation . - The objective in all types of coal preparation is the improvement of mine - run ...
... coal , but this disadvantage is offset by the presence of fewer fines under 1/4 inch , which is the hardest size range to clean and sell . Coal Preparation . - The objective in all types of coal preparation is the improvement of mine - run ...
Page 158
... coal - carrying railroads and five of the largest coal companies in the United States , has sponsored the development of a locomotive - size gas turbine fueled with pulverized coal . It has three major components : the compressor ...
... coal - carrying railroads and five of the largest coal companies in the United States , has sponsored the development of a locomotive - size gas turbine fueled with pulverized coal . It has three major components : the compressor ...
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19th century American army Battle became bituminous coal Bogotá British called cent century chief Church Clark clay cleft palate Cleveland climate Club coal coast cobalt cocaine Cochinchina coeducational coelacanths coffee coins coke College colloidal Colombia colonies color Colorado Columbia Columbus comet comic commerce Confederate Congress countries County seat East elected England English established Europe federal feet forces France French German important Indian industry Island Italy John June known land later latitudes London manufacturing ment miles mining North North America ocean Ohio operation organized ovens Pacific Paris period plants polar easterlies port president Railroad River Roman ships South Southern species square miles temperature theater tion town trade transportation Union United University vessels William women World War II yellow York