Anyone who had read The Greatest Thing in the World could not help but desire to see and hear its author; and, when Professor Drummond visited Boston in the spring of 1893, the capacity of lecture halls was taxed to the utmost. To accommodate thousands turned away, he repeated some of his lectures in the Lowell Institute Course, Boston. It was a crowded Boylston Hall or Appleton Chapel that invariably faced him when he addressed the students of Harvard University. He drew young men as few men can. He loved life and nature. He studied and knew men. He had read much. He had traveled in Europe, America, Africa, Australia and the New Hebrides, with eyes and ears wide open. With a charming personality and a rare grace of manner, he was a most attractive speaker and character, whether on the platform or in the quiet hour. The addresses here given to the public in permanent form for the first time, as they have already helped some, may yet help many more.