476 



INDEX TO VOLUME I. 



KtTMFORD. 



Rumford, steam, quantity of heat in, 

 19. 



Euthven, re-action propeller, refer- 

 ence to, 124. 



Ryder, J. N., superheated steam, 

 application of, discussion of paper 

 by, 72-75. 



ST. HELEN'S Glass Works, applica- 

 tion of regenerative gas furnace 

 at, 89. 



Saltley Works, experiments on re- 

 generative condenser at, 16. 



Saturated Steam. See Steam, satu- 

 rated. 



Selwyn, Captain J., liquid fuel, pro- 

 gress of, discussion of paper by, 

 130-131. 



Sharp, H., punching experiments 

 by, 172. 



Siemens, C. W. See Expansion of 

 air, Gas-engines, Gas-producers, 

 Gaseous fuel, ( Governors, Chrono- 

 metric, Gyrometric), Gyrometer ; 

 papers by, 1-2, 3-17, 17-26,29-50, 

 50-61, 62-65, 81-95, 107-123, 141- 

 153, 177-190; Refrigerating ma- 

 chinery (Regenerative Condenser, 

 furnace, gas fire, gas furnace, gas 

 lamp, steam engine), Regenerator, 

 Steam, Steam-jet ; suggested coal- 

 getting machine, 129. 



Siemens, F., regenerative furnace, 

 invention of, 63. 



Southern, latent heat of steam, 19. 



Society of Arts' Gold Medal awarded 

 to regenerative condenser, 2. 



Specific heat of elastic fluid pro- 

 portionate to rate of expansion by 

 heat, 34. 



Speeds, alternation of, affecting 

 steam governors, 140. 



Steam, ancient knowledge regarding, 

 50 ; combined, 76 ; conducting 

 power of, 61 ; expanded is super- 

 heated, 24 ; (expansion of behind 



STEAM ENGINE. 



piston, causes condensation, 33, 

 34 ; Clausius, Rankine, referred to, 

 33) ; (expansion of isolated, 21 ; 

 Frost's experiments on, 21 ; Sie- 

 mens's apparatus for determining, 

 21 ; and law of, 21 ; and curve of, 

 22 ; and experiments on, 22 ; and 

 table of, 25) ; (expansion of satu- 

 rated. 23 ; agrees with that of air. 

 23 ; curve of, 33 ; variation of 

 pressure arid density of, 23) ; 

 heat of, increased with density, 

 60 ; (heating by, 190 ; closeness of 

 atmosphere with, 192 ; criticism 

 of system of, 191 ; gas preferable 

 to, 191 ; large pipes necessary for, 

 191 ; objections to, 191) ; higl 

 pressure, cooling effect of expan- 

 sion of, how explained, 24 ; high 

 pressure contains excess of heat 

 which superheats expanded, 20, 

 24 ; latent heat of, observed by 

 Black, 18 ; mixed with air, 136 ; 

 quantity of heat in, 18, 19 ; pre- 

 ferable to other elastic mediums 

 for caloric engines, reasons why, 

 60 ; rise of temperature with pres- 

 sure of, 78 ; saturated, great capa- 

 city for heat of, 76 ; specific gravity 

 of, 60 ; (superheated, advantages 

 attained with, viz., complete evai- 

 poration, 73, condensation pre- 

 vented, 73, 74, 77, and increased 

 bulk, 73 ; trial of, 72, 73 ; con- 

 siderations in experimenting with, 

 73 ; economy by use of, not great, 

 76 ; heat advantageously applied 

 in, 74 ; joints for, difficulty with, 

 and cement for, 75 ; regenerative 

 steam, versus, 75 ; saving by use 

 of, 75) ; (total heat of, 17 ; Sie 

 mens's, C. W., apparatus and ex- 

 periments for determining, 20, 26 j 

 Watt's law for, 19). 

 Steam engine, air engine, comparison 

 and essential difference between, 

 39, 46, 138 ; application of, recent, 



