676 



INDEX 



PAGE 



Solids: refraction indices 356 et seq. 



resistivity 408-419 



velocity of sound 1 90 



Verdet's constant 477 



Solubility: f (p) 220 



gases in liquids 221 



water, f(t) 219 



inorganic salts in water, f(t) 218 



organic " " *' " 219 



Solutions: boiling point rise by salts in 269 



conductivity, electrolytic 632 



densities of aqueous 170 



dielectric constants, calibration standards. 446 



diffusion of aqueous 215 



freezing point lowering by salts in 267 



magneto-optic rotation 478 



refractive indices 372 



specific heats 291 



sucrose, viscosity and density 206 



surface tensions 222 



thermal conductivity 276 



vapor pressures 291 



Verdet's constant 478 



viscosities 210, 211 



specific 212 



sucrose 206 



Solvents, organic, boiling points 220 



Sound : audibility 1 94 



bel 193 



decibel 193 



harmonics 193 



loudness levels, musical instruments 194 



noises 193 



miscellaneous data 193, 194 



musical instruments 194 



scales 192 



noises 193 



overtones ■ 193 



speech 195 



supersonics 191 



thresholds 193 



velocity 190, 191 



waves, energy of 193 



Space: amount of matter, interstellar 644 



Ca, Na, in interstellar 644 



charge, atmospheric electricity 597 



temperature, interstellar 645 



transparency, " 643 



Sparking potentials: alternating, in air 439 



ball electrodes 439-440 



kerosene 441 



large spark gaps, f (pressure) . . 440 



steady, in air 439 



various materials 441 



Specific charge, a particle 105 



proton \ 105 



gravity (see also densities) 158-179 



to A. P. I. scale 158 



Baum <> " 158 



neat: ammonia, sat. liq 291 



atomic, constant 108 



elements 285-287 



formula for true 287 



gases: also C P /C V 293 



liquids 291 



mean 288 



mercury 290 



minerals and rocks 292 



silicates 292 



solids, miscellaneous 290 



true 287, 288 



sapors 293 



water 290 



inductive capacities: crystals 447 



gases, f (t, p) 442 



liquefied 445 



liquids, f(t, p) 443 



solids 446 



standard solutions . . 446 



. molecular conductivity 432-434 



resistance (see resistivity) 



viscosity 210, 212 



Spectroscopic binary stars 629 



Spectrum: atomic (see series) 



band constants 106, 51 1-5 1 2 



black-body, constants, formulae ...313, 317 



in ergs and calories, total,, 313 



PAGE 



Spectrum: black-body, 50 to 20000° K 314 



25° to 600° K 315 



8oo° to 25000° K 316 



Bohr-Hund notation 502, 504 



classes, stars: distribution by magni- 

 tudes 620 



distribution of binaries.. 620 



galactic concentration . . 620 



Harvard 617 



proper motions 626 



temperatures 632, 633 



elements 355 



persistent lines, arc 509 



spark 510 



resonance lines 511 



ultimate lines 507 



emissivity, tungsten 322 



energy of stars 633 



sun 608 



gamma rays: emission 529 



energy 529, 532 



ionization 530 



scattering 531 



sources 531 



wave lengths ...529, 532, 534 



molecular 512-513 



diatomic constants 51 2-5 1 3 



energy levels 51 2-5 1 3 



sensitivity, photographic plates and 



Alms 343, 344 



series, atomic: arc lines 504 



atomic relations 502 



Bohr-Hund notation . . . 502 



combinations, intersexes. 504 



configuration, electron . . 505 



displacement law 503 



electron configurations . . 505 



volts 502 



forbidden combinations.. 355 



Hund quantum numbers.. 504 



hydrogen series 495 



inner quantum num- 

 bers 503, 504 



Lande's interval rule.... 503 

 life, average, of some 



terms 511 



limits 502 



lines, average life 511 



metastable terms 505 



multiplicity ..502, 503, 504 



normal relations 502 



notation 504 



, Bohr-Hund . . . 502 



parity notation 504 



persistent lines, arc, 



spark 509, 510 



quanta and term type 



(Hund) 504 



quanta, inner 503, 504 



raies ultimes 504 



resonance lines ....504, 511 



Rydberg 502 



terms 502 



ultimate lines 507 



volts, electron 502 



wave numbers 502 



Zeeman effect 503 



molecular: 



diatomic constants ...511, 512 



energy levels 512 



solar-energy curve, Abbot-Priest, sea- 

 level '. 614 



solar: provisional, ultra-violet and infra- 

 red wave lengths 353 



solar: standard wave lengths 350-352 



standard wave lengths: primary 347 



secondary, 



computed arc. 349 



Fe arc ..347~349 



vs. absolute magnitudes of stars. . . .621, 622 



X-ray: characteristic 542 



critical absorption limits 538 



emission lines 538 



spectroscopy 543 



Speech 195 



conversation 195 



vowel resonance 195 



