rk), C. (cut), F. (fill), G. (grade),
etc., for the levellers.

Mr. Brackett explained the meaning of these signs patiently and clearly
to the boy, whose quick wit enabled him readily to comprehend all that
was told him. By noon he was furnishing stakes, properly marked, for the
various purposes required, as well as though he had been engaged in this
business for a month. It was not a very important position, to be sure;
but he filled it to the very best of his ability, which is the most that
can be expected of any boy.

One of the things by which the new member was most strongly impressed,
during this first day's experience, was the great difference between Mr.
Brackett on duty and the same gentleman during his hours of relaxation.
While at work he was grave and dignified, nor did he tolerate any
familiarity from those who obeyed his orders. And they did obey them
promptly, without question or hesitation. He was no longer "Billy;" but
was carefully addressed as "Mr. Brackett" by every member of the party.
It was evident that he not only thoroughly understood his business, but
as thoroughly understood the temper of his men. It was clear, also, that
they were well aware that he was not a man to allow his authority to be
questioned or trifled with. With this mutual understanding the work
progressed smoothly and satisfactorily.

All this was a study in character of which Glen was wise enough to learn
the lesson; and perhaps it was the most valuable one of that day's
schooling. The discipline of a well-drilled engineer corps is very
similar to that maintained on board ship; and, while at certain seasons
it may be greatly relaxed, it can, and must, be resumed at a moment's
notice, if the authority necessary to produce the best results is to be
respected.

The same merry, rollicking party rode back into Kansas City that evening
that had left it in the morning; and, though Glen was very tired, he had
become well enough acquainted with them to enter heartily into the
spirit of the fun. Thus, whenever they sang a song he knew, his voice
was heard among the loudest.

At the hotel they learned for the first time of the attempt to rob the
train Glen had come on, and wondered that he had said nothing of the
affair. When they questioned him, he did not know how to talk of it
without proclaiming his share in the night's work, and so only said
that, as he was asleep when the fight took place, he had seen nothing of
it.

Long af