462 



INDEX TO VOLUME II. 



FARADAY, S.S. 



Faraday, S.S., appliances for cable- 

 laying, 137 ; bilge keels of, 141;" 

 (low rudder locked by a strong 

 bolt, 183 ; use of, 182) ; cable- 

 laying machinery of, 140 ; cable 

 operations, designed for, 180, 182 ; 

 Froude, W., assisted in designing 

 of, 141, 180 ; grappling arrange- 

 ments of, 141 ; (manoeuvring power 

 of, advantage of, 139, 180 ; by con- 

 verging screws, 181) ; rolling of 

 avoided by use of bilge keels, 180 ; 

 steadiness of, 141 ; steam launch 

 for, 141 ; steam steering apparatus 

 of, 139 ; steering of, by propeller 

 alone, 182 ; stem and stern alike, 

 rudders of, 139 ; testing-room of 

 electrician in, 139 ; tonnage, beam, 

 length, water-tight cable tanks of, 

 139 ; turning power of, 139, 180 ; 

 twin screw arrangement of, 181 ; 

 water-tight compartments and 

 hollow cones of, 141. 



Faults, of insulators, 113. 



Faults in long lines, 47 ; (in sub- 

 marine cables, ascertaining, 

 methods and apparatus for, 98 ; 

 earth currents, affect, 183 ; posi- 

 tion of, determined, 50, 59, 93 ; 

 position of, Siemens's, Werner, 

 method of determining, 183) ; in 

 underground cables, testing for, 

 11. 



Fechner proved galvanic current 

 could traverse long wires, 18 ; 

 single needle telegraph of, in 1832, 

 18. 



Flaws in insulating covering, how 

 caused, 66. 



Flickering of electric light, causes 

 of, 190. 



Floats for deep-sea cables, objections 

 to, 27. 



Flowers, electric light hastens deve- 

 lopment of, 236. 



Foreland, South, experiments with 

 electric light at, 1 87. 



GAUSS AND WEBEB. 



Foster, G. C., Prof., Wheatstone 

 bridge, modified form of, discus- 

 sion of paper by, 126 127. 



Franklin, apparatus of comprised 

 elements of modern electric tele- 

 graph, 16 ; father of electrical 

 science, 16. 



Frictional electricity, great tension 

 and instantaneous discharge of, 

 24. 



Frischen and Siemens's, Werner, 

 means of doubling transmitting 

 power of single lines, 36. 



Froude, William, assistance rendered 

 in design of steamship Faraday, 

 141, 180. 



Fruit, electric light hastens develop- 

 ment of, 236. 



Fusion of metals, by Deville fur- 

 nace, 221 ; by dynamo-electric 

 current, 221 ; by oxy -hydrogen 

 blast, 221 ; by regenerative gas 

 furnace, 221. 



GALVANI, discovery of galvanic 

 current by, reference to, 17. 



Galvanic battery, expensive form of 

 producing electric energy in quan- 

 tity, 220. 



Galvanic current, discovery of, by 

 Galvani, 17 ; or Voltaic, continu- 

 ous, low tension of, 24. 



Galvanometer, marine, Sir William 

 Thomson's, 169 ; universal, Sie- 

 mens's, Werner, 168. 



Galvanometers and resistance mea- 

 surers, 168. 



Gauss, terrestrial magnetism, laws 

 of, determination of, 19. 



Gauss and Weber's magneto-electric 

 telegraph, deflected needle, weight 

 of 100 Ibs., 19 ; description of, 19 ; 

 electric current for, production of, 

 19 ; first, in 1833, 19 ; from Goet- 

 tingen Observatory to Weber's 



