INDEX TO VOLUME III. 



453 



8TOBAGK. 

 of power, :>'.'l. 



Stove heat, stuffiness of, 341 ; with- 

 out ventilation. iMC. 



Striated discharge, light of, brilliancy 

 of, 356 ; luminosity of, to what 

 due, 356 ; time and nature of, :i.~>r>. 



Stri:u, actual aggregations of matter, 

 3fi6 ; physical unit of striated dis- 

 charge, 855. 



Submarine cable, delays by rupture, 

 51. 



Submarine telegraphy, appliances 

 for, 172 ; conductor for, improve- 

 ments in, 172 ; threatened by 

 financial combination, 177. 



Success lies in steadiness of purpose 

 rather than brilliant talents, 291 ; 

 in victory over difficulties, 290. 



Successful men, cause of success of, 

 362. 



Suez Canal, reference to. 57, 348. 



Sun account, debtor and creditor for, 

 293 ; chromosphere of, 103 ; cir- 

 cular current of, energy consumed 

 in sustaining, 306 ; coal-fields 

 produced by, 294. 



Sun, conservation lof energy of 

 (convection c-urn-ntn, liquid and 

 gaseous in, 296 ; difficulty in con- 

 nection with, 297 ; possible action 

 illustrated by high-pressure boiler, 

 297) ; (liypothcsi-s of Helmholtz, 

 295; Mayer, 296; Stokes, G. G., 

 296 ; Thomson, Sir William, 2% ; 

 Waterton, 296) ; (Siemens' s, C. W., 

 hypothesis, conditions fundamen- 

 tal of, 299, 310 ; criticism of, 311; 

 vapours in space capable of dis- 

 sociation by sun, drawn back into 

 sun as fuel, 311 ; vortex action, 



, 298). 



Sun, convulsions in, 103 ; corona, 

 ideal of, similar to that observed 

 in America during eclipse in 

 1880, 313 ; (dark spots on, 298 ; 

 how explicable, 298) ; dissociation 

 within, 103 ; dissociation of gases 



TABLE OP EFKICIKXCY. 



in space by high temperature of, 

 :t<)2 ; effect of, in Africa and Gla*- 

 gow compared, 189 ; fan-like ac- 

 tion of, assumed, 306 ; gaseous 

 elementary bodies in, 103 ; geolo- 

 gical condition of the earth affected 

 by outpour from, 309 ; (heat of, 

 no appreciable diminution in, 103 ; 

 intercepted by earth's atmosphere, 

 102) ; (heat radiated from, 196, 

 295 ; applying, means of, 196 ; 

 expressed in weight of coal, 

 196, 295 ; intercepted by earth, 

 295 ; radiated into space, amount 

 of, 295 ; utilizing, means of, 196) ; 

 heavy gases should apparently be 

 drawn towards, 302 ; leaves of 

 plants, action of, on, 90 ; metal- 

 loids not existing in, Lockyer on, 

 302 ; oxygen existing in, Draper 

 on, 302 ; photosphere of, 103, 303 ; 

 spectroscopic analysis of, 1 03 ; spots, 

 cause of, 308 ; stormy regions of, 

 Herschel, Sir J., 307 ; temperature 

 of, no diminution of, 295 ; terres- 

 trial effects of, 293 ; theory, new, 

 of, 293 ; vortex action, velocity of 

 according to Lockyer, 298 ; (velo- 

 city nf revolution on axis, 302 ; 

 equatorial rise of solar atmosphere, 

 302 ; La Place on, 302 ; zodiacal 

 light due to, Mairan on, 302). 



Suspended line wires, 171, 241 ; at- 

 mospheric electricity affects, 171 ; 

 mutual induction between, 171 ; 

 objections to, 171 ; throwing down 

 of, by storms, 171. 



Swan, incandescence light of, 268. 



Syphon recorder, Thomson's, Sir W., 

 175, 326. 



TABLE of efficiency of dynamo-elec- 

 tric and alternate current ma- 

 chines, 400, 401 ; engines, theo- 

 retical and practical performance 

 of, 105. 



