INDEX. 



2 99 



Indices of refraction for alums (continued). 



quartz 186 



rock salt 182 



solutions of salts 188 



sylvine 182 



Inductance, mutual 42 



Integrals, elliptic .43 



Intensity, horizontal, of earth's magnetic field 



112 



total, of earth's magnetic field no 



Iron, elasticity and strength of 72 



hysteresis in 280-283 



magnetic properties of 274-283, 292 



Isotonic coefficients 1 50 



Jewels, unit of weight for 13 



Joule's equivalent 220 



Kerr's constant, definition and table of 292 



Kilogramme, definition of xvi 



Kundt's constants 291 



definition of 291 



Latent heat 204, 206 



Least squares, various tables for 35, 37 



Legalization of practical electric units. . . .xxxiv 



Length, conversion factors for 1 1 



Light, velocity of 176-243 



rotation of plane of polarized 191 



Linear expansion of chemical elements 214 



of various substances 215 



Liquids, absorption of gases by 125 



compressibility and bulk moduli of 82 



density of 88 



magneto-optic rotation in 286, 287 



magnetic susceptibility 292 



refractive indices of 189 



specific heat of 295 



thermal conductivity of 197, 198 



thermal expansion of 217 



Lowering of freezing-point by salts 192 



Magnetic field, effect of, in resistance of bis- 

 muth 293 



moment, conversion factors for 27 



permeability 274-280 



properties of cobalt, manganese steel, 



magnetite and nickel 279 



properties of iron and steel 276 



saturation values for steel 279 



susceptibility of liquids and gases 292 



units, conversion formulae for 3 



dimension formulae for xxv 



Magnetism, conversion factors for surface 



density 26 



terrestrial 1 10-1 18 



Magnetization, conversion factors for inten- 

 sity of 26 



Magnetite, Kerr's constant for 292 



magnetic properties of 279 



Magneto-optic rotation, general reference to 



284 



tables of 285-291 



Masses, conversion factors for 13 



Materials, strength of 7~73 



Measurement, units 1 of xv 



Mechanical equivalent of heat 220 



Melting-points of chemical elements 207 



Melting-points (continued). 



of mixtures and alloys 211 



of organic compounds 212 



Mercury, density of 86 



electric resistance of 255, 256 



index of refraction 181 



specific heat of 225 



strength of 70 



Metals, density of 86 



electric resistance of 254-258 



specific heat of 296 



thermal conductivity of 197 



Metals and metallic oxides, indices of refrac- 

 tion for 181 



Metre, definition of xvi 



Metric weights and measures 



equivalents in British .....* 5 



equivalents in United States 10 



Mixtures, freezing 199 



Moduli of elasticity 74-83 



Molecular conductivities 261, 262 



Moments of inertia, conversion factors for. . . 13 

 Moment of momentum, conversion factor 



for 16 



Momentum, conversion factors for 13 



Mutual inductance, table for calculating 42 



Neutral-points, thermoelectric 249 



Newton's rings and scale of colors 130 



Nickel, Kerr's constants for 292 



magnetic properties of 279 



Ohm, various determinations of 262 



Osmose and osmotic pressure 1 50 



Pearls, unit of weight for 13 



Peltier effect ... 250 



Pendulum, length of seconds 104, 105 



Permeability, magnetic 274-280 



Photometric standards 176 



Planets, miscellaneous data concerning 106 



Poisson's ratio 76 



Polarized light, rotation of the plane of 191 



Potential, contact difference of 268 



difference of, between metals in solu- 

 tions 269 



electric, conversion factors for 27 



Pound, definition of xvi 



Power, conversion factors for 19, 21 



Practical electrical units xxxiii 



Pressure, barometric, for different boiling- 

 points of water 170, 171 



critical, of gases 200 



effect on radiation 236 



of aqueous vapor 151-154 



at low temperatures 156 



in the atmosphere 1 57 



of mercury column 119 



osmotic 1 50 



of vapors 126, 225-227 



of wind 1 08 



Probability, table for calculating 36 



Quartz, fibres, strength of 70 



refractive index of . . 186 



Radiation, effect of pressure on 236 



of inorganic compounds 2c8 ! Relative humidity 161 



