In this picture we see the Greek Runner on the last leg of his journey
and the man to whom he is to deliver the message waiting for him. This
method of sending messages was not very fast, although the runners were
picked because of their speed and endurance.]
[Illustration: THE PONY TELEGRAPH.
Here we see the fast riders of the Pony Telegraph, which increased the
speed of delivering messages quite a good deal, but, of course, there
was danger of losing the message to enemies or through accident, so
that it might be difficult under such circumstances to send a secret
message or to even be certain that it would arrive at destination.]
[Illustration: IT IS EASY TO CALL A TELEGRAPH MESSENGER...