INDEX 



66 3 



PAGE 



Cement, Dekhotinsky, physical, mechanical data... 654 



mechanical properties 1 26 



Centipoises 205 



Cepheids, variable stars 634 



Characteristic X rays 542 



Characteristics of lights: automobile 339 



flash- 339 



miniature 339 



movie 339 



surgical 339 



Charcoal, adsorption by (I. C. T., 3, 250; 5, 139). 554 



Charge, electronic (elementary) 88, 92, 103 



Chemical composition of earth 572 



meteors 614 



sun 612-614 



electrical equivalents 431 



energy 311 



Circular area, definition 658 



Clay products, mechanical properties 128, 129 



Clouds of Magellan 616 



Cluster variables 634 



Clusters, galactic 637, 638 



globular 637, 638 



open, distribution of 637 



star, properties of 637 



Coals, heats of combustion, analyses 308 



Cobalt, mechanical properties 124 



Collision frequencies of molecules 550 



Colloids: (miscellaneous data) (I. C. T., 1, 354; 2, 

 357; 3, 281; 4, 430; 5, 571; 6, 106) 



adsorption heats 554 



molecular heats 554 



of gases 554 



Brownian movement 553 



general properties 553 



molecular volumes 553 



Color, indices: stellar 602, 617 



screens: 20 to 40/i 393 



20 to 150/i 394 



io8±/i 395 



bibliography 384 



black absorbers 384 



dyes 385 



glass 386-388 



good absorbers 384 



narrow spectrum regions 384 



ultra-violet 388 



sensitivity of eye to small changes 332 



temperature: miscellaneous 318. 319, 323 



molybdenum 323 



tantalum 323 



tungsten 323 



various sources 335 



Combination, heats of 311, 312 



Combustion, " " 307, 308 



Compressibility: carbon dioxide 145 



crystals 140, 157 



elements, linear, cubic 140 



ethylene 145 



gases 143 



0° C, 76 cm 144 



100 to 1,000 atm 145 



high pressures 147 



low temperatures 144 



nitrogen 146 



liquids 154 



petroleum oils 155 



solids (see also mechanical prop- 

 erties) 156 



Compton shift 107, 646 



Concrete, mechanical properties 126, 127 



Conduction, heat across air 327 



at high temperatures across air.. 328 

 Conductivity, electric: (see resistivity) 



alloys 409, 414 



temperature coeffi- 

 cients 4'5. 416 



atmosphere 596-600 



dielectrics 4 1 8 



gases * 



high-frequency 449 



pressure effects 4 1 2 



tension effects 4 '4 



super, of metals 433 



PAGE 



Conductivity, electrolytic 431 et seq. 



electrochemical equiva- 

 lents, norma] solutions. 432 

 electrolytic solutions . . . 432 

 equivalent : 



acids, aqueous solu- 

 tions 435 



bases, aqueous solu- 

 tions 435 



ions, separate 438 



salts 435-437 



hydrolysis of ammonium 



acetate 438 



ionization of water 438 



A'is 432 



molecular, specific, 



f(t) 433. 434 



fl 434 



thermal 272 et seq. 



alloys 272 



conversion factors 279 



gases 277 



insulators 274-276 



liquids, organic 277 



, pressure vari- 

 ation .... 27S 



metals 272 



organic liquids 277 



salt solutions 276 



temperature, high 273 



water 276 



Cones, number and distance apart in eye 332 



Conifer woods, mechanical properties 133, 135 



Constants: mathematical 14 



physical, Birge 73 



Constellations, abbreviations 615 



Contact (volta) potentials 548, 549 



Contrast sensitivity of the eye 331 



Convection, cooling by 325-327 



Conversation, phonetic powers 195 



Conversion factors 3, 4. 25 1 



horsepower to foot-pounds 251 



work into various units 251 



Cooling by radiation and convection 325-327 



Copper: alloys: brasses, mechanical properties 120 



bronzes, " 120 



nomenclature 120 



three components, mechanical prop- 

 erties 121-123 



two components, mechanical prop- 

 erties 119 



mechanical properties 1 18-123 



plates, mechanical properties 119 



rolled, " " no 



wire, carrying capacity 416 



mechanical properties 118-119 



tables, English 423 



metric 426 



Cosines: circular, logarithmic ( "') 32-36 



(radians) 37 _ 4o 



natural ("') 32-36 



(radians) 37 _ 4o 



hyperbolic, logarithmic, natural 41-46 



Cosmic rays 649 



Cotangents: circular, logarithmic (") 32-36 



(radians) 37-40 



natural (°') 32-36 



(radians) 37-40 



hyperbolic, logarithmic, natural 4 I_ 46 



Coulomb, definition 658 



Couples, thermal 244-247 



Critical constants of gases -71 



Crova wave length 335 



Crucibles 282 



Cryostats, nonflammable liquids 251 



Crystals, diffraction of unit 55 1 



elasticity 138. 139. 140 



of metallic 140 



indices of refraction, biaxial ..366-368, 370 



uniaxial 336-366 



inversions, enantistropic 261-265 



heats of 261 



metal, cubic compressibility 140 



clastic constants 140 



linear compressibility 140 



♦ Phenomenon too complex for insertion in book. See .?. J. and 0. P. Thomson Conductivity of electricity through 

 gases, 1928; K. T. Compton and Langmuir, Electrical discharge in gases, Rev. Mod. Pnys., 2, 123, 1930. 



