Dickerson, E. N. (Edward Nicoll), 1824-1889. Joseph Henry and the magnetic telegraph / an address delivered at Princeton college, June 16 1885, by Edward N. Dickerson ...

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Dickerson, E. N. (Edward Nicoll), 1824-1889.

Joseph Henry and the magnetic telegraph / an address delivered at Princeton college, June 16 1885, by Edward N. Dickerson ...

Henry, Joseph, 1797-1878.

Telegraph -- History.