The Encyclopedia Americana: The International Reference Work, Volume 7Americana Corporation, 1960 - Encyclopedias and dictionaries |
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Page 144
... anthracite . Geologists tell us that 1 foot of bituminous coal required 20 feet of original plant life to form it . Miners frequently find fossil forms of the ferns , coral , shellfish , snails , insects , and broken tree trunks of the ...
... anthracite . Geologists tell us that 1 foot of bituminous coal required 20 feet of original plant life to form it . Miners frequently find fossil forms of the ferns , coral , shellfish , snails , insects , and broken tree trunks of the ...
Page 149
... Anthracite ( Pennsylvania 38,709 36,816 28,076 27,118 24,922 25,926 Bituminous 481,144 420,771 412,258 355,717 426,497 453,574 Lignite 2,986 2,737 2,586 2,443 2,000 2,800 South America : Argentina : Bituminous 37 109 1202 200 NA 150 ...
... Anthracite ( Pennsylvania 38,709 36,816 28,076 27,118 24,922 25,926 Bituminous 481,144 420,771 412,258 355,717 426,497 453,574 Lignite 2,986 2,737 2,586 2,443 2,000 2,800 South America : Argentina : Bituminous 37 109 1202 200 NA 150 ...
Page 150
... anthracite 247 269 295 302 300 300 Belgian Congo : Bituminous and anthracite 218 253 315 400 400 450 French Morocco : Anthracite 394 460 565 486 450 460 Madagascar : Bituminous 5 4 5 4 4 Mozambique : Bituminous 78 115 162 ΝΑ 200 NA ...
... anthracite 247 269 295 302 300 300 Belgian Congo : Bituminous and anthracite 218 253 315 400 400 450 French Morocco : Anthracite 394 460 565 486 450 460 Madagascar : Bituminous 5 4 5 4 4 Mozambique : Bituminous 78 115 162 ΝΑ 200 NA ...
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19th century agricultural altitude American anthocyanins anthracite army Battle became Bituminous bituminous coal blue Bogotá British called cent century Church Clark clay Cleveland climate coal coast cobalt coeducational coelacanths coffee coins coke College colloidal Colombia colonies color Colorado Columbia Columbus comet comic books command commerce Confederate Congress County seat Department East elected England English established federal feet forces France French Germany Henry History important Indian industry Island John June known land later latitudes Lignite London manufacturing ment miles mines North Ocean operation organized Paris period plants polar easterlies president railroad region River Roman served ship South Southern species square miles temperature theater tion tons town trade transportation Union United University Valle del Cauca vessels William World War II yellow York