436 



INDEX TO VOLUME III. 



GAS. 



342 ; mechanical energy, trans- 

 formation of, 342 ; motor of the 

 future, 343 ; results, maximum, 

 attainable with, 343 ; in ships, 

 future use of, 343 ; temperature 

 ratios in, 342) ; fireplace, objec- 

 tions to, 240 ; (fame, conductive 

 transfer of heat from, to air 

 supporting, 340 ; luminosity of, 

 depends on temperature, 340 ; 

 luminous, J 5 th part according to 

 Tyndall, 340 ; temperature, rais- 

 ing of, 340) ; (fuel, benefits of, 

 239,335,380; cheapest and cleanest 

 form of, 335 ; consumption, large 

 future, of, 380 ; efficiency of, to 

 what due, 340 ; for mechanical 

 effects, advantages of, 341); illu- 

 minating power of, necessity for 

 increasing, 335 ; illuminating and 

 heating, separation of, benefits of, 

 380 ; lighting, deleterious gases 

 produced in, 239 ; lighting inaugu- 

 rated at Soho Works, 286 ; place 

 for, gas engine cylinder not gas 

 burner, 2G8. 



Gas producer, action of, 194; at 

 bottom of coal pits 99, 100, 134, 

 257 ; (circular form of, 255 ; ar- 

 ranged for coke production, 255 ; 

 description of, 255 ; gas from, 338 ; 

 heat, intense, region of, 255 ; modus 

 operandi of, 255 ; object of, 256) ; 

 conversion of coal into gas in, 110 ; 

 description of, 193 ; loss in, 12^%) 

 111 ; utilisation of waste deposits of 

 small coal by, 100 ; water below 

 grate, decomposition of, in, 110 ; 

 work of distillation, value of, in 

 heat units, 110 ; (zones of, com- 

 bustion, carbonisation and distil- 

 lation, 110; temperature of, 110). 



Gas (retorts, heated with gaseous 

 fuel, 339 ; steam supplied to, at end 

 of process, 339) ; solid fuel less 

 economical than, 365 ; supply, 

 large area of, 371, 372 ; transport- 



GLAZEBROOK. 



ability of, 335 ; (works, bye-pro- 

 ducts from, and value of, 336, 338 ; 

 capital, large, invested in, 336). 



Gases highly rarefied, experiments 

 on, 354. 



Gaseous atmosphere in space, Grove, 

 Humboldt, Newton, quoted by 

 Hunt, S., and Williams, M., on, 

 reference to, 299 ; unlimited, 299. 



Gaseous fuel and solid, relative heat 

 of combustion of, 269 ; solid fuel 

 likely to be replaced by. for heating 

 power and domestic purposes, 286 ; 

 smoky atmosphere would be cured 

 by, 286. See Fuel, gaseous, and 

 Gas fuel. 



Gauss electrical unit, suggested by 

 Thomson, Sir William, 323. 



Gauss on magnetic measurement, 

 reference to, 321. 



Gautier, M., corrosion, experiments 

 on, 151 ; solid steel castings, paper 

 on, 144, and steel, definition of, 

 reference to, 147 ; Terrenoire 

 works, chemist of, 213. 



German stove, economical means of 

 producing heat without ventila- 

 tion, 95. 



German technical colleges have re- 

 ceded, 278. 



German Universities, vigorous life of, 

 277. 



Gesellenstiick, 388. 



Gintl, Dr., duplicate telegraph an- 

 nounced by, 167. 



Gladstone, Dr., secondary battery, on 

 action of, 410. 



GlasgowScienceLecturesAssociation, 

 lectures of Siemens, C. W., to, 182, 

 243. 



Glasgow, water supply and possible 

 light and power supply from Loch 

 Katrine, 204. 



Glassworks formerly smoke pro- 

 ducers, 254. 



Olazebrook,investigation of Ohm by 

 416. 



