There is a natural telegraphy. Whoever stands in an open place and calls aloud to his fellow mortal at a distance telegraphs to him. At least he telephones to him; that is, sounds to him at a distance. The air is the medium, the vocal cords in vibration the source of the utterance, and the ear of the one at a distance the audiphonic receiver. This sort of telegraphy is original and natural with human beings, and it is common to them and the lower animals. All the creatures that have vocality use this method. It were hard to say how humble is the creeping thing that does not rasp out some kind of a message to its fellow insect. Some, like the fireflies, do their telegraphing with a lantern which they carry. The very crickets are expert in telegraphy, or telephony, which is ultimately the same thing.
After transmitted sound the next thing is the visible signal, and this has been employed by human beings from the earliest ages in transmitting information to a distance. It is a method which will perhaps never be wholly abandoned. Observe the surveyors running a trial line. Far off is the chain bearer and here is the theodolite. The man with the standard watches for the signal of the man with the instrument. The language is seen and the message understood, though no word is spoken. Here the sunlight is the wire, and the visible motion of the hands and arms the letters and words of the message.
The ancients were great users of this method. They employed it in both peace and war. They occupied heights and showed signals at great distances. The better vision of those days made it possible to catch a signal, though far off, and to transmit it to some other station, likewise far away. In this manner bright objects were waved by day and torches by night. In times of invasion such a method of spreading information has been used down to the present age. Nor may we fail to note the improved apparatus for this kind of signaling now employed in military operations. The soldiers on our frontiers in Arizona, New Mexico, and through the mountainous regions further north, are able to signal with a true telegraphic language to stations nearly a hundred miles away.
Considerable progress was made in telegraphy in the after part of the eighteenth century. This progress related to the transmission of visible messages through the air. In the time of the French Revolution such contrivance occupied the attention of military commanders and of governing powers. A certain noted engineer named Chappe invented at this epoch a telegraph that might be properly called successful. Chappe was the son of the distinguished French astronomer, Jean Chappe d'Auteroche, who died at San Lucar, California, in 1769. This elder Chappe had previously made a journey into Siberia, and had seen from that station the transit of Venus in 1761. Hoping to observe the recurring transit, eight years afterward, he went to the coast of our then almost unknown California, but died there as stated above.
The younger Chappe, being anxious to serve the Revolution, invented his telegraph; but in doing so he subjected himself to the suspicions of the more ignorant, and on one notable occasion was brought into a strait place—both he and his invention. The story of this affair is given by Carlyle in the second volume of his "French Revolution." One knows not whether to smile or weep over the graphic account which the crabbed philosopher gives of Chappe and his work in the following extract:
"What, for example," says he, "is this that Engineer Chappe is doing in the Park of Vincennes? In the Park of Vincennes; and onward, they say, in the Park of Lepelletier Saint-Fargeau, the assassinated deputy; and still onward to the Heights of Ecouen and farther, he has scaffolding set up, has posts driven in; wooden arms with elbow-joints are jerking and fugling in the air, in the most rapid mysterious manner! Citoyens ran up, suspicious. Yes, O Citoyens, we are signaling; it is a device, this, worthy of the Republic; a thing for what we will call far-writing without the aid of postbags; in Greek it shall be named Telegraph. 'Telégraphê sacre,' answers Citoyenism. For writing to Traitors, to Austria?—and tears it down, Chappe had to escape and get a new legislative Decree. Nevertheless he has accomplished it, the indefatigable Chappe; this his Far-writer, with its wooden arms and elbow-joints, can intelligibly signal; and lines of them are set up, to the North Frontiers and elsewhither. On an Autumn evening of the Year Two, Far-writer having just written that Condè Town has surrendered to us, we send from the Tuileries Convention-Hall this response in the shape of a Decree: 'The name of Condè is changed to Nord-Libre (North Free). The Army of the North ceases not to merit well of the country.' To the admiration of men! For lo! in some half-hour, while the Convention yet debates, there arrives this new answer: 'I inform thee (Je t'annonce), Citizen President, that the Decree of Convention, ordering change of the name Condè into North Free; and the other, declaring that the Army of the North ceases not to merit well of the country, are transmitted and acknowledged by Telegraph. I have instructed my Officer at Lille to forward them to North Free by express.' Signed, Chappe."
This successful telegraph of Engineer Chappe was not an electric telegraph, but a sunlight telegraph. Is it in reality any more wonderful to use the electrical wave in the transmission of intelligible symbols than to use a wave of light? Such seems to have been the opinion of mankind; and the coming of the electric telegraph was long postponed. The invention was made by slow approaches. In our country the notion has prevailed that Morse did all—that others did nothing; but this notion is very erroneous.
We are not to suppose that the Chappe method of telegraphing became extinct after its first successful work. Other references to what we suppose to be the same instrument are found in the literature of the age. The wonder is that more was not written and more accomplished by the agency of Chappe's invention. In the fall of the year 1800, General Bonaparte, who had been in Egypt and the East, returned to Europe and landed at Frejus on his way to Paris, with the dream of universal dominion in his head. In the first volume of the Memoirs of Napoleon Bonaparte, his secretary M. de Bourrienne, writing of the return to France says:
"We arrived in Paris on the 24th Vendemiaire (the sixteenth of October). As yet he (Napoleon) knew nothing of what was going on; for he had seen neither his wife nor his brothers, who were looking for him on the Burgundy Road. The news of our landing at Frejus had reached Paris by a telegraphic despatch. Madame Bonaparte, who was dining with M. Gohier when that despatch was communicated to him, as President of the Directory, immediately set off to meet her husband," etc. We should be glad to know in what particular form that "telegraphic despatch" was delivered! But such are Bourrienne's words!
To the American reader the name of Karl Friedrich Gauss may have an unfamiliar sound. Gauss was already a youth of fourteen when Morse was born, though the latter outlived the German mathematician by seventeen years. Gauss was a professor of Mathematics at Göttingen, where he passed nearly the whole of his life. In the early part of the century he distinguished himself in astronomy and in other branches of physical science. He then became interested in magnetic and electrical phenomena, and in 1833, with the assistance of Wilhelm Eduard Weber, one of his fellow-professors, who died in 1891, he erected at Göttingen a magnetic observatory. There he began to experiment with the subtle agent which was soon to be placed at the service of mankind.