A Rule of the Boy Scouts is every day to do some one a good turn. Not because the copy-books tell you it deserves another, but in spite of that pleasing possibility. If you are a true Scout, until you have performed your act of kindness your day is dark. You are as unhappy as is the grown-up who has begun his day without shaving or reading the New York Sun. But as soon as you have proved yourself you may, with a clear conscience, look the world in...