ands by the gravel ballast on which
they fell. The two boys were picked up by the train-hands and carried
to the platform, and the grateful father at once offered to teach the
rescuer, whom he knew and liked, the art of train telegraphy and to make
an operator of him. It is needless to say that the proposal was eagerly
accepted.

Edison found time for his new studies by letting one of his friends look
after the newsboy work on the train for part of the trip, reserving
to himself the run between Port Huron and Mount Clemens. That he was
already well qualified as a beginner is evident from the fact that he
had mastered the Morse code of the telegraphic alphabet, and was able
to take to the station a neat little set of instruments he had just
finished with his own hands at a gun-shop in Detroit. This was probably
a unique achievement in itself among railway operators of that day or of
later times. The drill of the student involved chiefly the acquisition
of the special signals employed in railway work, including the numerals
and abbreviations applied to save time. Some of these have passed
into the slang of the day, "73" being well known as a telegrapher's
expression of compliments or good wishes, while "23" is an accident
or death message, and has been given broader popular significance as
a general synonym for "hoodoo." All of this came easily to Edison, who
had, moreover, as his Herald showed, an unusual familiarity with train
movement along that portion of the Grand Trunk road.

Three or four months were spent pleasantly and profitably by the youth
in this course of study, and Edison took to it enthusiastically, giving
it no less than eighteen hours a day. He then put up a little telegraph
line from the station to the village, a distance of about a mile, and
opened an office in a drug store; but the business was naturally very
small. The telegraph operator at Port Huron knowing of his proficiency,
and wanting to get into the United States Military Telegraph Corps,
where the pay in those days of the Civil War was high, succeeded in
convincing his brother-in-law, Mr. M. Walker, that young Edison could
fill the position. Edison was, of course, well acquainted with the
operators along the road and at the southern terminal, and took up his
new duties very easily. The office was located in a jewelry store, where
newspapers and periodicals were also sold. Edison was to be found at the
office both day and night, sleeping ther