Warren Hilton is the author of books such as Applied Psychology. Lest in the text of these volumes credit may not always have been given where credit is due, grateful acknowledgment is here made to Professor Hugo Münsterberg, Professor Walter Dill Scott, Dr. James H. Hyslop, Dr. Ernst Haeckel, Dr. Frank Channing Haddock, Mr. Frederick W. Taylor, Professor Morton Prince, Professor F.H. Gerrish, Mr. Waldo Pondray Warren, Dr. J.D. Quackenbos, Professor C.A. Strong, Professor Paul Dubois, Professor Joseph Jastrow, Professor Pierre Janet, Dr. Bernard Hart and Professor G.M. Whipple, of the indebtedness to them incurred in the preparation of this work. The greatest of all eras is at hand! Are you increasing your fitness to appreciate it and take part in it, or are you merely passing your time away? Take careful note for a week of the incidents of your daily life—your methods of work, habits of thought, modes of recreation. You will discover an appalling waste in your present random methods of operation.
