1XDEX TO VOLUME 1. 



469 



COMBUSTION. 



ing, 72 ; theoretical considerations 

 of, 70. 



Combustion, complete, 204 ; partial, 

 J"l : [M.-rfect in regenerative gas- 

 furnace, 96. 



Combustion of vegetable substances, 

 168 ; continuous, systematic and 

 equal feeding in Head's, J., sys- 

 tem, 169 ; Qarrett's, F., system, 

 169. 



Combustion, waste products of, used 

 in, regenerative gas furnace, 81. 



Condensation, depends on, 3 ; due to 

 development of power, 74 ; how 

 effected, 3 ; perfect, 3 ; prevented 

 by mixing air with steam, 138 ; 

 surface, 69 ; Dr. Ure's experiment 

 on, 14. 



Condenser, advantages of effective 

 surface, 12 ; Hall's, 12 ; historic 

 sketch of, 11 ; Hornblower's sur- 

 face, 12 ; for land and other steam- 

 engines, 1 ; loss of mechanical 

 effect in, 52; (Me Carter, 167, 

 compared with ordinary, 167 ; 

 compensating, advantage of, 167 ; 

 worked on Newcomen principle, 

 167) ; Newcomen's, 11 ; object of, 

 3 ; regenerative, see Regenerative 

 condenser ; surface, 12 ; water re- 

 quired for, 7 ; Watt's, 12, 51. 



Condensing water, required for 

 ordinary condenser, 7 ; required for 

 regenerative condenser, 2, 6 ; tem- 

 perature of, 4. 



Conical pendulum, principle of, 

 107. 



Contre-vapeur system, Le Chatelier's, 

 165. 



Convertibility of physical forces. 

 See Physical forces. 



Cooke, C. W., Wenham's heated air- 

 engine, discussion of paper by, 

 161-164. 



Copper, great heat-conducting power 

 of, 14 ; thick pan of evaporates 

 more quickly than thin, 14, 



EJECTOR-CONDENSER. 



Cornish engine, action of, 68 ; reason 

 of economy of, 68 ; superheated 

 steam used in, 24. 



Cowper, E. A., expansive steam- 

 engines, experiments on, 24 ; hori- 

 zontal pumping-engines, descrip- 

 tion of, discussion of paper by, 68, 

 69 ; hot-blast stoves, application 

 of regenerative system to, 94 ; 

 regenerative hot-blast furnaces, 

 recent improvements in, discus- 

 sion of paper by, 132-135 ; steam, 

 suggestions as to experiments on, 

 18. 



Cylinder, steam, of Watt's engine, 

 51 ; uncovered, loss by condensa- 

 tion in, 138. 



DA.LTON on expansion, 21. 



Davy, heat, material theory of, dis- 

 proved by, 30. 



Dean, experiments to burst steam- 

 boilers, 173. 



Desprez, quantity of heat in steam, 

 19. 



Diagram of gas production in gas- 

 retort, 185 ; theoretical of Erics- 

 son's, 42 ; and of Stirling's engine, 

 40. 



Disassociation, 179, 204 ; Bunsen on, 

 179, 204 ; Ste.-Claire Deville on, 

 179, 204 ; temperature of, 204. 



Dulong. See Expansion of air. 



Dynamical curve, 36. 



Dynamical theory. See Heat. 



EATON,R.,Warsopaero : steam engine, 

 discussion of paper on, 136-139. 



Ebelmen's, blast-furnace gases, re- 

 searches on, 182. 



Efficiency of mechanical . con- 

 trivances, how adjudged, 133. 



Ejector - Condenser, 157 ; annular 

 water- jet in, 158 ; increasing con- 

 densing surface of, 157, 158. 



