326 



Index 



Sulphur trioxide, 256 

 Supersaturated solution, 272, 273 

 Symbol, 262 

 Synthesis, 262 



Table of latent heats, 168; 

 specific gravities, 68; specific 

 heats, 163 



Tape-measure, disadvantages of, 5 



Tea-cosy, reason for use of, 186 



Temperature, absolute scale of, 

 156; distinction from heat, 

 159 ; critical, 82 ; definition of, 

 148 ; maintenance of body, 227 



Ternary compounds, 309 



Thermal capacity, 162 



Thermometer, 136; Clinical, 149; 

 construction of, 137; deter- 

 mination of fixed points on, 

 146 ; graduation of, 141 ; maxi- 

 mum, 151; method of filling, 

 139, sealing, 140; minimum, 

 150, 151; readings, change of 

 scale of, 147; rise of zero, 

 142; scales used for, 147; 

 Six's, 151 



Thermometers, checking labora- 

 tory, 142; Rutherford's, 150, 

 151 



Thermos flask, 186 



Torricelli, 98 



Torricellian vacuum, 99 



Transference of heat, conditions of, 

 148 



Transformations of energy, 123, 

 261, 285, 290 



Transmission of heat through 

 fluids, 187; solids, 183; space, 

 192 



Triangle, area of, 25 



Unit of heat, 161 

 Unit measure, 1 

 Units, standard, 2 

 Unstable equilibrium, 114 

 Upthrust, 85, 86 



U-tube barometer, 99; eudio- 

 meter, 299 



Vacuum a bad conductor of heat, 



186 

 Vaporisation, effect of air-currents 



on, 173 ; heat absorbed during, 

 167, 237; latent heat of, 168 



Vapour, definition of, 106 



Ventilation of coal-mines, 190 ; of 

 living-room, 190 



Vernier, principle of, 19; simple, 

 18 



Vision, stimulation by ether waves, 

 192 



Volume, British units, 33 ; Metric 

 units, 33; relation between 

 weight and, 63 



Volumes of gases, calculations in- 

 volving, 155 



Walls, method of strengthening, 

 133 



Water, a bad conductor of heat, 

 185 ; a compound, 303 ; action 

 on calcium, 281, copper, 281, 

 glass, 267, iron, 247, 281, mag- 

 nesium, 281, potassium, 281, 

 sodium, 280 ; analysis of, 283 ; 

 and ice, relation between vol- 

 umes of, 174; and steam, 

 relation between volumes of, 

 175; as a standard substance, 

 65; -bath, 265; behaviour 

 when cooled, 293, heated, 143 ; 

 characteristic properties of, 

 291, 294; chemical test for, 

 289; composition by volume, 

 285, 298, 299, weight, 294, 298; 

 distinction from its elements, 

 224; dissolved gases in, 144; 

 distillation of, 266 ; -equivalent, 

 164 ; expansion during solidifi- 

 cation, 174; high specific heat 

 of, 161; anomalous expansion 

 of, 292; importance of dis- 

 solved gases in, 243 ; maximum 

 density of, 293; -pipes, cause 

 of bursting, 174; product of 

 combustion, 223, 288, of neu- 

 tralisation, 310, of respiration, 

 226; solids dissolved in, 265; 

 solubility of liquids in, 278; 

 synthesis of, 294; vapour in 

 air, 233, measurement of, 239, 

 sources of, 235 



Weighing in a vacuum, 95 

 in water, 89 



