XII CONTENTS CONTENTS PREFACE TO REVISED EDITION. PREFACE TO THE NEW EDITION THE PROFESSOR AT THE BREAKFAST-TABLE. I II III IV V VI VII VIII IX X XI XII PREFACE TO REVISED EDITION. The reader of to-day will not forget, I trust, that it is nearly a quarter of a century since these papers were written. Statements which were true then are not necessarily true now. Thus, the speed of the trotting horse has been so much developed that the record of the year when the fastest time to that date was given must be very considerably altered, as may be seen by referring to a note on page 49 of the