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In the mid-1700s, the earliest area anthracite mines offered secure employment for local residents. Nearly 250 years later, ...
The actual mining of anthracite is only the beginning of a long series of processes which produce the accurately sized pure coal which is so satisfactorily burned to-day in millions of homes and ...
Mr. McConnell. the assumed inventor, claims that anthracite coal from the mines ot South Wales can be used in these engines, at a saving of one-half the cost of bituminous coke, and a complete ...
In the mid-1700s, the earliest area anthracite mines offered secure employment for local residents. Nearly 250 years later, regional mines still provide jobs. The Department of Environmental ...
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