HARPER'S WEEKLY, New York, April 4, 1903  Frontpage photo Americans of To-morrow XXX.-Lloyd Griscom; The Story of the Alaskan Boundary; Pope Leo XIII. and American Education; Niagara Falls Runs Dry; Exploring the Sea Bottom; "Lonesome" by Clarence F. Underwood; photo of Henry James, professor of Harvard; and other news and advertisements of the day. See photos for full details.