LVPKX TO VOLUME III. 



451 



SOHO WOKKS. 



of, 67; inrmliiTs. foreign, of. r,s ; 

 members, honorary, of. i'.7 ; mem- 

 bers, origin il, < 'ooke. Morse. Thom- 

 8on, Tyndall and Whcatstone, 67 ; 

 need of, 64, 65. (it! ; proceedings 

 of, contemplated translat ion of, 74 ; 

 prosperity, future of, influenced by 

 start of, 64 ; publishing fund, pro- 

 posed establishment of, 74. 



Soho Works, gas lighting inaugu- 

 rated at. _>*<;. 



Solar absorption spectrum, explana- 

 tion of, 307. 



Solar centrifugal action, mechanical 

 statement regarding, 303. 



Solar eclipse of 1 871). observations of. 

 by Lockyer, J. N., and Schuster. 

 357 ; results of. summary of. 



357. 



Solar energy, conservation of, 293 : 



(Itfpotketit of, 357 ; postulates on 



which based, 337 ; solar eclip<'. 



observations in favour of. 357) : 



utilizing, modes of, 204. 

 Solar fan action, result of assumed. 



303, 3U6. 

 Solar heat, 102 ; radiated on earth 



equal to combustion of layer of 



coal 8 in. deep over whole earth. 



102 ; variation of, cause of. 



308. 

 Solar products of combustion, 304 ; 



dissociation of. by solar action. 



B04. 



Solar radiation, application of, 363. 

 Solar rays, absorption of, Abney. 



Capt., on, 3:>8. 



Solar rotation in medium of un- 

 bounded extension, 303. 

 Solar system, velocity of. through 



space, 308. 

 Solenoid coils, experiments with. 



260. 

 Solid steel castings, Gautier's paper 



on, 144. 

 Sounding machines, Thomson's, Sir 



W., 346 ; pressure gauge for, 347 ; 



.-i i: \\i-i M; INI:. 



recovery of cable- by. 317 : value; 

 f. 347. 



Sounding wire drawn up by elec- 

 tricity, 404. 



Soundings, careful and extensive, 

 neeessary for cable laying, 22. 



South Kensington Science School, 

 281. 



Space, compound gases in, 357. 



Spectroscope, importance of in re- 

 search, 356, 357 ; researches of 

 Lockyer. J. N., with, 103. 



Spectrum, solar absorption, explana- 

 tion of, 307. 



Spencer's puddling mechanism, re- 

 ference to. 14!. 



Spots, sun. cause of, 308. 



Spottiswoode, W.. British Association 

 lecturer, reference to. 85 ; (rln-trii- 

 dixrliid-yr, experiments on, 355 ; 

 mechanism of, 355). 



Stark, Dr., quadruplex telegraphy, 

 reference to, 168. 



State and inventor, implied compact 

 between, 54. 



Static and dynamic system, relation 

 between, 324; Thomson's, Sir Wrn., 

 illustration of, 324. 



Statistical information regarding 

 telegraphic correspondence, 76. 



Steam boiler, gaseous fuel, tired 

 economically with, 256 ; suppres- 

 sion, entire, of, 257. 



Steam-engine, comparison of high 

 pressure and expansive, 94 ; (roul 

 consumption, 94 ; of large and 

 small, compared, 201) ; economy, 

 future of, in mode of production 

 rather than expansion of steam. 

 82; (rffiricnnj of steam in, 192: 

 total of, 192;) effect in, cause of 

 loss of, 393 ; heat actually used in, 

 proportion of, 191, 245 ; mechani- 

 cal force given out by, 393 ; 

 scientific consideration of and of 

 metallurgical processes, 62 ; (waste 

 in, 362 ; reduction of, by scientific 



