Charles Marshall not the inventor of the electric telegraph
G. B. Blair · Notes and Queries · 1860
Journal Article Charles Marshall not the inventor of the electric telegraph Get access Geo. Blair Geo. Blair 1Glasgow Search for other works by this author on: Oxford Academic Google Scholar Notes and Queries, Volume s2-X, Issue 237, 14 July 1860, Pages 22–23, https://doi.org/10.1093/nq/s2-X.237.22 Published: 14 July 1860