Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 830
ome substance that could be broughtinto incandescence by the electric current, and yet be incombustible even 778 COAL-GAS. in the open air, that his investigations led to the invention we have now-to describe—an invention apparently destined lo give a new lease of life:to coal-gas illumination. It…
Inventions
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