INDEX TO VOLUME I. 



HEAT. 



AEEO-STEAM ENGINE. 



AEBO-steam engine, Warsop's, 136. 



Air-engine, 36 ; comparison of, an 

 essential difference between steam- 

 engine and, 39, 46, 138 ; difficulty 

 with joints of, 162 ; drawbacks in, 

 164 ; (Ericsson's, 26, 36 ; action 

 of, 26 ; compared with steam- 

 engine, 49 ; description of, 42 ; 

 economy of, estimate of, 43, and 

 means of improving, 27 ; experi- 

 ments on, 59 ; failure of, cause of, 

 58 ; friction great in, 44 ; heated 

 cylinder of, drawback of, 44 ; 

 heating surface too small in, 28, 44 ; 

 . imperfections of, 44, 163 ; indi- 

 cated horse-power of , 45 ; practical 

 arrangement of, 28 ; pressure effec- 

 tive in, 43 ; radiating surfaces 

 large of, 44 ; regenerator applied 

 to, 42 ; theoretical diagram of, 42 ; 

 theoretical result impossible in, 

 28 ; weight and bulk of, 44) ; 

 expansive, theoretical superiority 

 and practical inferiority of, 38, 39 ; 

 important for small power, 164 ; 

 joints of, cement for, 162 ; re- 

 generative principle applied to, 

 161 ; regenerator in, misconception 

 of use of, 163 ; (Stirling's, 36, 39 ; 

 advantages of, 39 ; and Cornish 

 engine compared, 41 ; description 

 of, 40 ; failure of, cause of, 41 ; and 

 perfect engine compared, 41 ; 

 practical defect of, 42 ; pressure, 

 working of, 40 ; real effect of, 

 41 ; theoretical diagram of, 40 ; 



P.LAST. 



theoretically inferior but actually 

 equal to Ericsson's, 46). 



Air expansion. See Expansion of air. 



Air injected into steam, 136 ; action 

 taking place when, 137 ; prevent- 

 ing sediment and priming in 

 boiler, 136, 137 ; work increased 

 when, 136, 138. 



Allen governor, 159 ; essential dif- 

 ference between Siemens's liquid 

 governor and, 160 ; mode of action 

 of, 159 ; simplicity of , 159 ; throttle 

 valve essential to, 161. 



Anthracite coke, 100. 



Appold oven, 100. 



Atmosphere, closeness of indwellings 

 heated by steam, 192. 



Auxiliary propulsion, 124. 



BIDDER. S. P., coal working and 

 breaking, machines for, discus- 

 sion of paper by, 128-130. 



Black, experiments of, on latent heat 

 of steam, 18. 



Blast furnace, chemical action in, 

 133 ; fuel, minimum for smelting 

 in, 134 ; limit of economy in, 134 ; 

 opinions of iron-masters regard- 

 ing, 134, 135. 



Blast furnace gas, application of, 182. 



Blast of high temperature, 132 ; 

 duties to be performed by, 134 ; 

 question considered, 133 : reduc- 

 tion in quantity of required, 135 ; 

 temperature of, 135. 



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