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Electro-magnetic telegraph. : Communication from the Secretary of the Treasury, transmitting the report of Professor Morse, announcing the completion of the electro-magnetic telegraph between the cities of Washington and Baltimore
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Samuel Morse letters
Manuscripts
Two of the letters are written to Congressman John B. Aycrigg. In these letters, Morse is talking about the telegraph and is requesting assistance in getting his brother Sidney Morse permission to use a map. These letters are dated 1843 and 1844. HM 79876-79877.
mssHM 79876-79878