CONTENTS OF VOLUME II. vii 



PAOK 



ON Tin; i I.S-I:KVATION OF SOLAR ENERGY 423 



5 nl x,i ON THE CONSEBVATION OK SOLAR ENERGY, REPLY TO 



Mit. E. H. COOK, Phil. Ma}?. XVI. 188:5. pp. <12-6. 

 a ml ON THE CONSERVATION OP SOLAR ENERGY, London, Mac- 



milhm. 1883. 



ON THE DEPENDENCE OP RADIATION ON TEMPERATURE . . 434 

 SOME OP THE QUESTIONS INVOLVED TN SOLAR PHYSICS . . . 445 



DISCUSSION OF PAPERS, ETC. 



ELECTRICITY. 



ON THE ELECTRIC TELEGRAPH 5 



ON SUBMARINE ELECTRIC TELEGRAPHS . 11, 14, 75, 87, 88, 114, 143 



ON THE PROGRESS OF THE ELECTRIC TELEGRAPH .... 37 



ON THE TELEGRAPH TO INDIA AND THE EAST 110 



ON PYROMETERS 124 



ON A MODIFIED FORM OF WHEATSTONE'S BRIDGE, &c. . . . 126 



ON ELECTRICAL IGNITION OF EXPLOSIVES 127 



ON LIGHTNING AND LIGHTNING CONDUCTORS 128 



ON IRON TELEGRAPH POLES 132 



ON THE TELEGRAPH CABLE-SHIP Faraday 180 



ON SOME RECENT IMPROVEMENTS IN DYNAMO-ELECTRIC APPARATUS 187 



ON THE TELEGRAPH ROUTES BETWEEN ENGLAND AND INDIA . 193 



ON THE CONNECTION BETWEEN SOUND AND ELECTRICITY . . 196 

 ON ELECTRICITY FOR LIGHTING PURPOSES .... 198, 245 



ON THE ELECTRIC LIGHT FOR LIGHTHOUSE ILLUMINATION . . 206 



ON LIGHTHOUSE CHARACTERISTICS 244 



ON ELECTRICAL RAILWAYS AND TRANSMISSION OF POWER BY 



ELECTRICITY . . ... 24S, 264 



