d to W. T. Holt The drill rod may be extended to any desirable length by gas, however produced, will yield greater results in heat than and John North, June 22, 1869. simply adding fresh pieces of pipe. Common gas pipeis found can be obtained from any crude mineral fuel; while the gas During the… … Fn anthracite mines. This secms like ding purposes. It is also extensively “ carrying coals to Newcastle,” but is used for railroad grading, surface nevertheless a fact ; while for the pro- mining, well-boring, ete., where it duction of illuminating gas, a rich bituminous isthe only ion came into…
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