The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 273
Fig, 8, An [ntermeiliatc and Toririble Telcgiaph. … Section of Rail» ay. Ki^. 10, The Electric Delcclor, for detecting injury caused to the «ircs, i-c. m^^
Architecture · Civil engineering · Science
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