Page:Heroes of the telegraph (IA cu31924031222494).djvu/214

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auxiliary receiver working at a slower rate than the direct one, he was found incompetent, and transferred to a day wire at Cincinnati. Determined to excel, however, he took shift for the night men as often as he could, and after several months, when a delegation of Cleveland operators came to organise a branch of the Telegraphers' Union, and the night men were out on 'strike,' he received the press reports as well as he was able, working all the night. For this feat his salary was raised next day from sixty-five to one hundred and five dollars, and he was appointed to the Louisville circuit, one of the most desirable in the office. The clerk at Louisville was Bob Martin, one of the most expert telegraphists in America, and Edison soon became a first-class operator.

In 1864, tempted by a better salary, he removed to Memphis, where he found an opportunity of introducing his automatic repeater, thus enabling Louisville to communicate with New Orleans without an intermediary clerk. For this innovation he was complimented; but nothing more. He embraced the subject of duplex telegraphy, or the simultaneous transmission of two messages on the same wire, one from each end; but his efforts met with no encouragement. Men of routine are apt to look with disfavour on men of originality; they do not wish to be disturbed from the official groove; and if they are not jealous of improvement, they have often a narrow-minded contempt or suspicion of the servant who is given to invention, thinking him an oddity who is wasting time which might be better employed in the usual way. A telegraph operator, in their eyes, has no business to invent. His place is to sit at his instrument and send or receive the messages as fast as he can, without troubling his mind with inventions or anything else. When his shift is over he can amuse himself as he