GEORGE STEPHENSON 124 A CENTURY'S PROGRESS IN LOCOMOTIVE BUILDING 128 CUGNOT'S TRACTION ENGINE AND THE "NOVELTY" LOCOMOTIVE 132 THE FAMOUS LOCOMOTIVES "ROCKET" AND "SANS-PAREIL" 134 THE DEVELOPMENT OF THE LOCOMOTIVE 150 THE HOBBY-HORSE OF 1820 CONTRASTED WITH THE MOTOR CYCLE OF TO-DAY 154 THE EVOLUTION OF THE BICYCLE 156 THE EXTREMES OF AUTOMOBILE DEVELOPMENT 158 AN ENGLISH STEAM COACH OF 1827 AND A NEW YORK TAXICAB OF 1909 162 A RACING AUTOMOBILE 166 RETROSPECT AND PROSPECT IN TRANSPORTATION--THE DE WITT CLINTON TRAIN AND THE GYROCAR 200 TWO VIEWS OF MR. LOUIS BRENNAN'S MONORAIL GYROCAR 216 AN INTERNATIONAL BALLOON RACE 242 TWO FAMOUS FRENCH WAR BALLOONS 264 THE ZEPPELIN DIRIGIBLE BALLOON 266 AN ENGLISH DIRIGIBLE BALLOON 268 ENGLISH AND AMERICAN DIRIGIBLE WAR BALLOONS AND A WRIGHT AEROPLANE 270 THE AEROPLANE OF M. SANTOS-DUMONT 272 LEARNING HOW TO FLY 278 FLYING MACHINES OF THE MONOPLANE TYPE 284 THE WRIGHT AEROPLANE 288 MR. WILBUR WRIGHT PREPARING TO ASCEND IN HIS AEROPLANE WITH HIS PUPIL M. CASSANDIER 292 THE FARMAN AEROPLANE 294 THE MONOPLANES OF BLÉRIOT AND LATHAM 296 A BRITISH AEROPLANE 298 MR. WILBUR WRIGHT FLYING OVER NEW YORK HARBOR, OCTOBER 4, 1909 300 THE CONQUEST OF TIME AND SPACE INTRODUCTION The preceding volume dealt with the general principles of application and transformation of the powers of Nature through which the world's work is carried on. In the present volume we are chiefly concerned with man's application of the same principles in his efforts to set at defiance, so far as may be, the limitations of time and space.