Last spring, your friend Paul, not satisfied with writing for young folks, took it into his head to lecture before them. When I mentioned the subject to my acquaintances, many of them laughed at the notion of my lecturing to you, and a few remarked, "This is another of your queer notions." I did not see it!!! I thought I would try.Thousands of young folks came to your friend Paul's lectures in Boston, Brooklyn, and New York; not only did my young friends come, but a great many old folks were also seen among them.The intelligent, eager faces of his young hearers, their sparkling eyes, spoke to...