LIST OF ILLUSTRATIONS ON WOOD. 



PLATE PAGE 



I. STEAM AND HAND PILE-DRIVERS 21 



II. END VIEW OF SHAND AND MASON'S EQUILIBRIUM FIRE-ENGINE . 60 



III. DELEUIL'S AIR-PUMP 65 



IV. PERFORATING MACHINE OF THE MOUNT CENIS TUNNEL ... 71 

 VI. JAPANESE MUSICIANS 139 



VII. THE HARP 157 



VIII. ORGAN OF SAINT BRIEUC 1-S7 



IX. THE GREAT ORGAN, PRIMROSE HILL, LONDON 193 



X. THE ROSSE REFLECTOR 265 



XI. THE NEW TELESCOPE OF THE PARIS OBSERVATORY 271 



XII. THE TELESCOPE APPLIED TO THE STUDY OF THE HEAVENS . . 75 



XIII. CELESTIAL PHOTOGRAPHY 329 



XIV. A FIREPLACE IN THE MIDDLE AGES 339 



XV. ORIGINAL MODEL OF NEWCC MEN'S ENGINE 441 



XVI. "PUFFING BILLY" 463 



XVII. STEAM APPLIED TO PRINTING 495 



XVIII. OTTO AND LANGEN'S GAS-ENGINE 513 



XIX. HUGHES'S PRINTING TELEGRAPH 585 



XX. VIEW OF THE ELECTRIC ROOM AT TH-E NEW OPERA HOUSE IN PARIS. 683 



XXI. THE ELECTRIC LIGHT DURING THE SIEGE OF PARIS 687 



XXII. THE SIEMENS' LIGHT ARRANGED FOR TRAVELLING 691 



