two for our patrol."

At this moment Walter Osborne approached, walking rapidly from the
direction of headquarters.

"Hullo, Don," he called. "Have you seen the schedule? Great, isn't
it? Brings in about all our scoutcraft up to date!"

Walter hurried on, scarcely waiting to hear Don's reply in his
eagerness to overtake Blake Merton.

"I say, Blake," he began enthusiastically on reaching the fellow-hawk,
"do you know that this geological survey is going to give us fine
training in signaling? I hadn't realized it before, but maybe you
have, because of your experience over at Ralph's."

"Yes, I was interested in the simple system the railroad men used,"
Blake responded. "It is an eye and hand language worth learning."

"Well, I confess that I know nothing about it. And I didn't pick
up much from the work we had here while you were away. With all
credit to the Lieutenant, he does not know the practical side of
geological surveying, and while he interested us all, he did not
give us the real stuff that we shall get with Mr. Thayer."

"True for you," responded Blake. "All the fellows felt that way
after the tests last night, I guess. Those questions showed them
how few facts they had really learned. It was not hard for Bud and
me, because we have both had experience before now."