VOL. VI 



ILLUSTRATIONS 



A PRIMITIVE USE OF THE ANIMAL MACHINE THAT IS 



STILL IN VOGUE IN MANY EUROPEAN COUNTRIES Frontispiece 



HORSE AND CATTLE POWER Facing p. 32 



CRANES AND DERRICKS 38 



A BELGIAN MILK-WAGON " 56 



TWO APPARATUSES FOR THE UTILIZATION OF ANIMAL 



POWER " 60 



WINDMILLS OF ANCIENT AND MODERN TYPES . . . . " 68 



WATER WHEELS " 72 



HYDRAULIC PRESS AND HYDRAULIC CAPSTAN . . . . " 76 



THOMAS SAVERY'S STEAM ENGINE " 86 



DIAGRAMS OF EARLY ATTEMPTS TO UTILIZE THE POWER 



OF STEAM " 88 



A MODEL OF THE NEWCOMEN ENGINE " 92 



WATT'S EARLIEST TYPE OF PUMPING-ENGINE .... " 96 



WATT'S ROTATIVE ENGINE " 100 



JAMES WATT " 108 



OLD IDEAS AND NEW APPLIED TO BOILER CONSTRUCTION " 114 



COMPOUND ENGINES " ng 



ROTARY ENGINES " 122 



THE ORIGINAL PARSONS' TURBINE ENGINE AND THE REC- 

 ORD-BREAKING SHIP FOR WHICH IT IS RESPONSIBLE " 128 



GAS AND OIL ENGINES " 136 



AN ELECTRIC TRAIN AND THE DYNAMO THAT PROPELS IT " 174 



[vii] 



