1000 



SUBJECT INDEX 



Vibration (cont'd): 



traffic -, 36, 41, 42, 913 

 Vibrator, 20, 36, 484, 911, 915-917, 919-927 

 Vibrographs, 581, 912-917 

 Villari effect, 317 

 Viola lime, 46 



Viscosity, 481, 631, 639, 736, 905, 958 

 Vitrophyre, density of, 81 

 Vivianite, density of, 78 

 Volcanic rocks: 



densities of -, 73, 81 



deposits of -, 416, 419, 424, 434, 855 



elastic moduli of -, 467 



magnetic properties of -, 313-318 



resistivities of -, 659 

 Volcanism, 3 



effect of -, on geothermal data, 853- 

 855, 858 



effect of -, on gravity, 165 

 Volcanoes, mud, 886, 887 

 Volcanology, 3 



Voltmeter, vacuum tube, 31, 617, 626, 778 

 Volume control, automatic, 21, 552 

 Volumetric method of measuring grav- 

 ity, 124 



W 



Wall failure (see Mine caving) 

 Walters Arch, Okla., 161, 430 



aerial -, 59, 63, 64, 941 , 942 



chemical -, 59, 64 



land -, 59, 63, 64, 940, 958 



marine -, 59, 63, 64, 949, 951 

 Washburn-Bunting method, 835 

 Water, 5, 6, 8, 47, 58-62, 76, 433, 475, 633, 

 636-€39, 641, 743, 744, 757, 812, 

 817, 830-840, 842, 847, 853-858, 

 866, 869, 870, 873-875, 881, 883, 884, 

 886-888, 895, 896, 899, 900, 906, 

 934, 935, 943-956, 959, 963 



bromine -, 886, 887 



cavern -, 60, 61 



connate -, 60, 62, 631, 638, 830-833 

 resistivity of -, 638, 832, 833 



- content (see Moisture) 

 dielectric constant of -, 633, 665 

 direct location of -, 5, 61, 812, 834, 836, 



857, 866, 869, 883, 959, 961, 963 



- encroachment, 858 



fissure -, 60, 61, 623, 735, 738, 739, 875, 

 885, 906, 908 



- flows (see also Pipe leaks), 834, 854, 



857, 858, 866, 869 

 ground -, 60, 61, 62, 743, 744, 812, 963 



dielectric constant of -, 655, 665 



resistivity of -, 638, 655 

 heat conductivity of -, 848 

 iodine -, 886, 887 



- leak (see Pipe leaks) 



- level, 'changes in, 165 



location of -, 47, 60, 61, 62, 433, 624, 

 625, 743, 744, 812, 830-840, 856-858, 

 866, 867, 869, 883, 959, 961, 963 



Water (cont'd) : 

 longitudinal wave velocity of -, 468, 



943 

 meteoric -, resistivity of, 638 

 mine -, resistivity of, 638 

 movement of (see also Pipe leaks and 



Water flows), 631, 667, 906, 961 

 radioactivity of - (see Radioactive 



waters) 

 resistivity of -, 61, 62, 631, 633, 636- 



638, 655 

 river -, resistivity of, 658 

 saline - (see Saline waters) 

 -sands, 636-638, 744, 830, 831, 833, 



834, 836, 838, 857, 858 

 soil -, resistivity of, 658 

 sour -, 886, 887 



spring -, 60, 61, 875, 881, 883, 884 

 stratigraphic location of -, 61, 743, 



744, 756, 757 

 structural location of -, 61, 433, 743, 



744 

 surface -, resistivity of, 658 

 -in wells, 34, 830-840, 842, 853-858, 

 866, 869 

 Wave front, 506, 507, 536-539, 623 

 Wave-front diagrams, 536-540 

 Wave length, 652, 655, 810-818, 881, 927, 



937, 938, 945, 957 

 Waves: 

 acoustic - (see Sound waves) 

 elastic - (see Seismic waves) 

 longitudinal - (see Longitudinal 



waves) 

 Love - (see Love wave) 

 radio - (see Radio waves) 

 Rayleigh - (see Rayleigh waves) 

 seismic - (see Seismic waves) 

 sound - (see Sound waves) 

 Wax, 36, 886-888, 899, 901, 903, 904, 908, 



910 

 Weathered layer, 23, 474, 475, 499, 533, 

 534, 540, 548, 550, 571-573, 576, 

 578, 862 

 longitudinal wave velocity of -, 468, 

 474, 475 

 Weathering: 

 effect of -, on density, 74, 75 

 magnetic effect of -, 318, 376 

 Weathering correction, 24, 548, 549, 571- 



573, 576, 578, 579, 862 

 Weathering deposits, 51 

 Weight: 

 determination of -, 71 

 falling -, as seismic energy source^ 

 483^84 

 Well casing: 

 magnetic effects of -, 374, 375, 425 

 plastic -, 491 

 Wellington shale, 83 

 Well surveying, 863, 866 



