I soon began to play with the key and to talk with the boys who were at the other stations who had like purposes to my own.

Whenever one learns to do anything he has never to wait long for an opportunity of putting his knowledge to use.
One morning I heard the Pittsburgh call given with vigor.

It seemed to me I could divine that some one wished greatly to communicate.

I ventured to answer, and let the slip run.

It was Philadelphia that wanted to send "a death message" to Pittsburgh immediately.