Morse, Edward L., ed. Samuel F. B. Morse, His Letters and Journals. New York, 1914
Alfred Vail, World of Invention. Accessed June 1, 2008.
Pope, Franklin Leonard. "The American Inventors of the Telegraph, with Special References to the Services of Alfred Vail." Century Illustrated Magazine 35 (April 1888), 924–45. on-line copy at Cornell's Making of America
Morse, Edward Lind (June 21, 1904). "Defends His Father's Claim to Paternity of the Telegraph" (PDF). New York Times. สืบค้นเมื่อ 2007-07-21. My attention has been called to a communication in The New York Times of June 7 headed "Vail, Father of the Telegraph," and signed Stephen Vail. While I have no desire to enter into a newspaper controversy with Mr. Vail, and while I am sure that you have no desire to encourage one, I trust in justice to my father, Samuel F.B. Morse, you will allow me a few words in reply.
Vail, Stephen (June 25, 1904). "VAIL-MORSE CONTROVERSY.; Stephen Vail on His Father's Claim to Telegraph Invention" (PDF). New York Times. สืบค้นเมื่อ 2009-12-22. Alfred Vail ... invented the new "recording receiver," "the sounding key," and the "dot-and-dash" alphabet...but doing his duty in strict accordance with his understanding of the terms of his contract, and that to Morse belonged all the he had accomplished.
แหล่งข้อมูลอื่น
Morse Telegraph Club, Inc. (The Morse Telegraph Club is an international non-profit organization dedicated to the perpetuation of the knowledge and traditions of telegraphy.)
Alfred Vail Biography at speedwell.org
The Electromagnetic Telegraph by J. B. Calvert
Profile of Alfred Vail (Manuscript Group 50, Alfred Vail Papers, The New Jersey Historical Society)
Vail Telegraph Collection (Record Unit 7055, Smithsonian Institution Archives)
Iles, George (1912), Leading American Inventors, New York: Henry Holt and Company, pp. 158–176
กันยายน 24, 2021
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Telegraph with Special References to the Services of Alfred Vail Century Illustrated Magazine 35 April 1888 924 45 on line copy at Cornell s Making of America 1 Morse Edward Lind June 21 1904 Defends His Father s Claim to Paternity of the Telegraph PDF New York Times subkhnemux 2007 07 21 My attention has been called to a communication in The New York Times of June 7 headed Vail Father of the Telegraph and signed Stephen Vail While I have no desire to enter into a newspaper controversy with Mr Vail and while I am sure that you have no desire to encourage one I trust in justice to my father Samuel F B Morse you will allow me a few words in reply Vail Stephen June 25 1904 VAIL MORSE CONTROVERSY Stephen Vail on His Father s Claim to Telegraph Invention PDF New York Times subkhnemux 2009 12 22 Alfred Vail invented the new recording receiver the sounding key and the dot and dash alphabet but doing his duty in strict accordance with his understanding of the terms of his contract and that to Morse belonged all the he had accomplished aehlngkhxmulxun aekikhMorse Telegraph Club Inc The Morse Telegraph Club is an international non profit organization dedicated to the perpetuation of the knowledge and traditions of telegraphy Alfred Vail Biography at speedwell org The Electromagnetic Telegraph by J B Calvert Profile of Alfred Vail Manuscript Group 50 Alfred Vail Papers The New Jersey Historical Society Vail Telegraph Collection Record Unit 7055 Smithsonian Institution Archives Iles George 1912 Leading American Inventors New York Henry Holt and Company pp 158 176ekhathungcak https th wikipedia org w index php title xlefrd ewl amp oldid 9600775, wikipedia, วิกิ หนังสือ, หนังสือ, ห้องสมุด,
