The Encyclopedia Americana: The International Reference Work, Volume 7Americana Corporation, 1962 - 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 ... anthracite 186 225 2232 196 220 250 Venezuela : Bituminous 28 25 29 32 30 30 Europe : } Bituminous Lignite Albania ...
... Anthracite ( Pennsylvania 38,709 36,816 28,076 27,118 24,922 25,926 Bituminous 481,144 420,771 412,258 355,717 ... anthracite 186 225 2232 196 220 250 Venezuela : Bituminous 28 25 29 32 30 30 Europe : } Bituminous Lignite Albania ...
Page 150
... anthracite Belgian Congo : Bituminous and anthracite 247 269 295 302 300 300 218 253 315 400 400 450 French Morocco : Anthracite 394 460 565 486 450 460 Madagascar : Bituminous 5 4 5 Nigeria : Bituminous Mozambique : Bituminous Tunisia ...
... anthracite Belgian Congo : Bituminous and anthracite 247 269 295 302 300 300 218 253 315 400 400 450 French Morocco : Anthracite 394 460 565 486 450 460 Madagascar : Bituminous 5 4 5 Nigeria : Bituminous Mozambique : Bituminous Tunisia ...
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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 Club coal coast Cochinchina coeducational coelacanths 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 India Indian industry Island John June known land later latitudes Lignite London manufacturing ment miles mines North Ocean operation organized Paris period plants port president railroads region River Roman served ship South Southern species square miles temperature theater tion tons town trade transportation Union United University Valle del Cauca vessels West William World War II yellow York