. . . . . "Modern telegraphy [microform] : some errors of dates of events and of statement in the history of telegraphy exposed and rectified" . . . . . "Modern telegraphy. Some errors of dates of events and of statement in history of telegraphy exposed and rectified"@en . . . "Modern telegraphy some errors of dates of events and of statement in the history of telegraphy exposed and rectified"@en . "Modern telegraphy some errors of dates of events and of statement in the history of telegraphy exposed and rectified" . . . . "History"@en . . . . . . . . . . . . "Modern telegraphy : some errors of dates of events and of statement in the history of telegraphy" . . . "Modern telegraphy. Some errors of dates of events and of statement in the history of telegraphy exposed and rectified" . "Modern telegraphy. Some errors of dates of events and of statement in the history of telegraphy exposed and rectified"@en . . . "Modern telegraphy : some errors of dates of events and of statement in the history of telegraphy exposed and rectified" . "Modern telegraphy : some errors of dates of events and of statement in the history of telegraphy exposed and rectified"@en . . . . . "Télégraphe Histoire Sources." . . "Telegraph." . . "1867." . . "Telegraph History." . . "Télégraphe Histoire." . . "A. Chaix and Co." . .