344 



INDEX. 



Boyle's law, 41, 46, 134, 137, 152, 189, 

 298, 308, 315, 329 



Boys, on the ice calorimeter, 73 ; on radio- 

 micrometer, 221 



Brass, expansion of, by heat, 3, 9, 19, 22, 

 26 ; specific heat of, 66-68 ; heat con- 

 ductivity of, 92, 98, 99, 100 ; electric 

 conductivity of, 100 ; radiation re- 

 flective power of, 230, 231 



Breezes. See Winds 



Bridges, expansion of iron by heat in, 

 17,25 



Bromine, atomic weight, 84, 87 ; specific 

 heat, 84, 87 ; atomic heat, 84, 87 



Bubbles, formation of, 163, 165, 166; 

 stability of, 167 



Bumping, 165, 168 



Bunsen, the ice calorimeter of, 72-73, 

 205 ; on the influence of pressure on 

 melting-point, 204 ; on latent heat, 

 205 



Bureau International des Poids et 

 Mesures, method of measuring linear 

 expansion of metals, 19, 20 



CAGNIAED de la Tour, on the critical 



point of alcohol, 88 

 Cailletet, on liquefaction of gases, 197 

 Cailletet and Collardeau, on the critical 



constants of water, 191-192 

 Cailletet and Mathias, on the critical 



volume, 192 



Calcium carbonate, molecular heat, 87 

 Callendar, the platinum resistance ther- 

 mometer of, 11 ; on pressure increase 

 of air kept at constant volume with 

 rise of temperature, 48 ; constant 

 volume air thermometer of, 50 ; 

 compensated air thermometer, 51-52. 

 See also Barnes. 



Calorimeter, mode of using, 66 ct seq., 

 95, 179 ; Bunsen's ice, 72-73 ; Joly's 

 steam, 73-75 ; Joly's differential 

 steam, 75-76 

 Calory, 65 



Camphor, sublimation of, 208 

 Cane sugar, aqueous solution of, 326 

 Capstick, on specific heat ratio, 293 

 Carbon, specific heat of, 81, 82, 86 ; 



atomic heat, 86 



Carbon dioxide, expansion with rise of 

 temperature under constant pres- 

 sure, 42 ; molecular weight, 85 ; 

 specific heat, 85, 86, 293, 294 ; 

 molecular heat, 85 ; effusion of, 141 ; 

 isothermals of, 188-192 ; equation 

 of, 194, 195 ; critical constants of, 

 196 ; corresponding pressure and 

 volume of, 196 ; critical temperature 

 and pressure of, 199 ; boiling and 

 melting points of, 199 ; radiations 

 absorbed by, 235 ; intrinsic energy 

 of, 299 



Carbon monoxide, molecular weight, 85 ; 

 specific heat, 85 ; molecular heat, 85 ; 

 critical temperature and pressure, 

 199 ; boiling and melting points, 

 199 ; radiations absorbed by, 235 

 Carnelly, on melting-points, 204 

 Carnot engine as a temperature scale, 

 10 ; action of, 262-264 ; cycle, 262- 

 264, 337 



Cazin, on specific heats of air, 293 

 Centigrade scale, 4 

 Change of state, 83, 157-208 

 Chemical energy, 114-115, 117, 129, 136 

 Chimneys, convection in, 59-63 

 Chloride of potassium, dissociation of, 



in solutions, 326 



Chlorine, atomic weight, 83 ; specific 

 heat, 84 ; radiations absorbed by, 

 235 



Chree, on heat conductivity, 104 

 Chronometers, balance wheel of, 27 

 Circulation of air, conditions requisite 



for, 60-63 



Clausius, on entropy, 277 

 Clay, radiating power of, 240 

 Cleavage of matter, 129 

 Clement and Desormes, on specific heat, 



291-292 



Clouds, 160, 169, 182, 215, 217, 313; 



cumulus, 216-217 ; strato-cumulus, 



216; ripple, 216; rate of fall of 



drops in, 217-218 



Coal, radiating power of hot, 240 ; 



available heat from, 282, 283 

 Cohesion, 133, 199 

 Collardeau. See Cailletet 

 Collision frequency of gas molecules,147 

 Compensation measuring bars and pen- 

 dulums, 26, 27 

 Compression of matter, 129 

 Condensation on nuclei, 168 et seq. 

 Conduction, definition, 88 

 Conductivity of electricity, 100 

 Conductivity of heat, 88-107 ; passage 

 from one body to another, 88 ; in the 

 three states of matter, 90 et seq., 

 definition of, 93 ; difl'usivity, 94 ; 

 measurements, 94 ; in solids, by 

 Peclet's method, 95 ; by bar methods, 

 96 ; Despretz's experiments, 96 ; 

 Forbes's experiments, 97 ; Neumann 

 and Angstrom's method, 98 ; Gray's 

 experiments, 99 ; Berget's experi- 

 ments, 99 ; experiments by Wiede- 

 rnann and Franz, 100 ; by Kundt, 

 100 ; in solids of low conducting 

 power and crystals, 101 ; experi- 

 ments by Senarmont, 101 ; and by 

 Lees, 101-103 ; in liquids, 103 et 

 seq. ; in gases, 106-107, 147, N,-, 

 Conservation of energy, 108, 116-118 

 Convection in water, 38, 90, 91 ; in 

 liquids, 90 ; in gases, 90, 91 



