830 Index. 



Heat developed in combustion of ether ii, 393 



naphtha ii, 401 



oil ii, 382 



spirit of wine ii, 387 



tallow ii, 402 



wax ii, 380 



wood .... ii, 405, 468-481 



in condensation of vapours . . . . ii, 417-424 



vapour of alcohol . . . ii, 419 



ether . . . ii, 423 



water . . . ii, 417 



excited by friction, source of .... 1,469-493; ii, 210 



experimental investigations concerning . . . ii, 131-165 



generated by absorption of light iv, 81 



greatest intensity of, produced by combustion . . . ii, 407 



by burning charcoal . . ii, 413 

 hydrogen . . ii, 412 



historical review of experiments on ii, 188-240 



intense, may exist unsuspected in a cold fluid . i, 367-383 



materiality of (See also Caloric?) ii, 103, 208 



means of increasing quantities of, obtained in com- 

 bustion of fuel ii, 345 



mode of manifestation iii, 39 



nature of, and mode of its communication (with plates) i, 488 



ii, 22-130, 247, 497 



of steam, used in making soap ii, 358-361 



passage of, through solid bodies ii, 144-157 



a Torricellian vacuum i, 405-424 ; ii, 193 



iii, 50 

 water impeded by certain 



substances i, 253, 262 



preserved best by bright metallic surfaces . . . . ii, 126 



produced by solar light ii> 158 



various combustibles, quantity of . . .iii, 113 



propagation of, in fluids i, 237-400 ; ii, 253 



liquids ii, 269, 274-289 



various substances .... i, 401-468 



quantity lost in carbonization of wood ii, 481 



radiant ii, 498 ; iii, 39 



radiated with equal facility from all metals .... ii, 59 



