470 



INDEX TO VOLUME I. 



ELASTIC MEDIUM. 



Elastic medium in perfect heat 

 engine, theoretically and practi- 

 cally considered, 59, 60. 



Electric arc for high temperatures, 

 181. 



Ellissen. See Gas retorts. 



Engines. See Air, Caloric, Combined 

 vapour, Cornish, Gas, Heat, Per- 

 fect, Pumping, Kegenerative 

 steam, Steam, Steam-steering. 



England, J., Giffard injector, dis- 

 cussion of paper by, 101-106. 



Ericsson. See Air-engine, Regenera- 

 tor. 



Ether-engine, advantages and dis- 

 advantages of, 70 ; and steam- 

 engine compared, 70. 



Evaporation of sugar, 150 ; high 

 temperature in, ill effects of, 151 ; 

 steam- jet exhauster applied to, 

 151 ; vacuum pan for, 151. 



Expansion of air and gases by heat, 

 21 ; curve of, 22, 162 (Determina- 

 tions by Dalton, 21 ; Dulong and 

 Petit, 21 ; Gay Lussac, 21) ; Sie- 

 mens's, C. W., views regarding, 22. 



Expansion of steam. See Steam. 



Expansive steam-engine. See Steam- 

 engine. 



Expansive valve-gear, Joy's, theoreti- 

 cally and practically superior to 

 old link motion, 174. 



FARADAY'S gas-burners, reference to, 

 190. 



Fire-syringe for converting force 

 into heat, 54. 



Flame, regulation of in regenerative 

 gas furnace", 96. 



Flint-glass melting in closed pots in 

 regenerative gas furnace, 92. 



Formula for liquid in rotation, 111, 

 112 ; for power of heat-engine, 37. 



Foucault, governor of, 110. 



Fox-Henderson, regenerative steam- 

 engine manufactured by, 16. 



GAS-PEODUCEE. 



Franklin Institute, experiments on 

 iron of, 58. 



Freezing, operation of, differs essen- 

 tially from power producing, 195, 

 197. 



Frost on expansion of isolated 

 steam, 21. 



Fuel. Sec Coke. Gaseous fuel, Liquid 

 fuel, Peat, Regenerative furnace, 

 Regenerative gas furnace. 



Fuel, evaporative power of, Rankine 

 on, 126 ; heat energy in, 178 ; 

 saving of, by regenerative gas fur- 

 nace, 65 ; wasted, 62. 



Furnace. See Regenerative furnace, 

 Regenerative gas furnace. 



GAIGNAED DE LA TOUE'S state of 

 vapour, 54. 



Galton, Capt. D., steam-heating 

 for towns and villages, combina- 

 tion system of, discussion of paper 

 by, 190-192. 



Garrett, F., on combustion of vege- 

 table substances, 169. 



Gas-engines, 203 ; mechanical ar- 

 rangements of, 203 ; modern, 205 ; 

 Siemens's, of 1860, 205 ; smaller, 

 206 ; theory of, 203 ; three types 

 of, 204. 



Gas fire. See Regenerative gas fire. 



Gas from blast-furnace, application 

 of, 182. 



Gas furnace. See Regenerative gas 

 furnace. 



Gas, illuminating. See Illuminating 

 gas. 



Gas lamp. See Regenerative gas 

 lamp. 



Gas-producer, action of, 87 ; carbonic 

 acid changed into carbonic oxide 

 in, 87 ; description of, 86 ; evolu- 

 tion of hydro-carbons in, 8i 

 excess of pressure in, how effected, 

 88, 89 ; fuel used in, 86 ; gases 

 proceeding from, 87, 91, 95 ; hori- 



