INDEX. 



Units of measurement: definitions, see APPENDIX. 



conversion factors .... 2-3 

 discussion, see INTRODUCTION. 



photometric 177 



ratio of electro-magnetic to static . . . 247 



V, ratio of electro-magnetic to -static units 



Vapor, aqueous: vapor pressure, low temp. 



o-ioo C 



I00-230 C 



pressure of, In atmosphere 

 relative humidity . . . 

 (saturated) weight of . . 



Vaporization, latent heat of 



for steam . .241 



Vapors: densities , 



diffusion of 137 



indices of refraction 



pressures: alcohol, ethyl, methyl . . , 



aqueous: low temp. . . . 



o-ioo C . . . 



I00-230 C . . . 



mercury 



salt solutions 



various 144 



specific heats 



viscosity, specific . . . 



Velocity of light 



sound; in gases and liquids 



solids ..... 

 Verdet 's constants: Verdet and Kundt's . 



gasesj 304 



liquids 295 



solids 



solutions, alcoholic . . 

 aqueous . . 



Vtacodty: a.cohol in water h " dra ; hlOTte 



fS : 3? 



vapors I3S 



water: temperature variation . . .125 



specific: gases 134 



oils 126 



solutions 129-133 



vapors 134 



water: temp, var 125 



Voltaic cells: composition, E. M. F. . . 252-253 



double-fluid 253 



secondary 253 



single-fluid 252 



standard 251, 253 



storage 253 



Volts, legal (international) xxxiv, 251 



Volumes: critical, for gases . . . . . . .221 



247 

 151 

 152 

 153 

 155 

 158 

 154 

 206 

 242 

 91 

 138 

 190 

 146 

 151 

 152 

 153 

 148 

 149 

 148 

 232 



102 

 101 

 304 

 305 

 305 

 298 

 303 

 301 



126 



Volumes: gases, perfect j6 2 



glass vessels, determinations of . . . xx 



Water: boiling-points for various pressures: 



common measures 168 

 metric measures . 169 

 densities, temperature variation . . 95, 96 



ionization of 273 



solutions in: boiling-points . . . ! 219 



densities 93 



diffusion 136 



electrolytic conduction 272-278 

 solutions of alcohol, densities . . . 98-100 



thermal conductivity , 200 



vapor pressure: low temperatures . .151 

 o to 100 C .... 152 

 100 to 230 C ... 153 

 vapor, pressure of, in atmosphere . . 155 

 (saturated) weights of . . . .154 

 viscosity: absolute, temp. var. . . . 125 



specific, temp, var 125 



Wave-lengths: cadmium red line 170 



elements, brighter lines . . . 170 

 Fabry-Buisson iron arc lines . . 170 



Fraunhofer lines 176 



iron lines, Fabry-Buisson . . . 170 



Kayser 174 



Kayser s iron arc lines .... 174 

 Rowland's solar lines . . . .171 

 solar lines (Rowland) . . . .171 

 Weights and measures: British to metric . . 9-10 

 metric to British . . . 7-8 

 metric to U. S. . . . 6 



Weights of bodies. . ^ . S< f ^ .' .' ! 5! 



Weights of sheet metal 70 



wire: copper, iron, brass: 



common units 60 

 metric units . 62 



aluminum, common and metric . . 64 

 copper wire, electrical constants 



common units 66 

 metric units . 68 



Wind pressures I2 2 



Wire gauges: Birmingham 59 



British standard 59 



Brown and Sharp 66 



Wire, weights of: brass, copper, iron . . . 60, 62 



aluminum 64 



copper 66, 68 



Woods: densities of 87 



strength of 72-73 



Young's modulus of elasticity 75 v 



Zonal harmonics S4 



