SUBJECT INDEX 



1001 



Well testing, well logging, 6, 9, 33, 46, 

 825-837 



acoustic -, 866-867 



elactrical -, 825-837 



gamma ray -, 876, 883 



gas detection -, 868, 869 



geothermal -, 837-863 



magnetic -, 865-867 



photoelectric -, 869 



radioactivity -, 863-865, 876, 883 



seismic -, 862, 863 



temperature -, 837-863 

 Wells: 



deep - (see Deep wells) 



shallow - (see Shallow wells) 

 Well shooting, 23, 34, 35, 465, 568, 862-863 

 Wenner-Gish-Rooney method (see Gish- 



Rooney method) 

 Wertheim effect, 317 

 Wheatstone bridge,- 29, 363, 613, 644, 645, 

 745, 827, 843, 844, 868, 931, 932, 938 

 Wiedemann balance, 303 

 Wilson balance, 303 

 Wireless communication (see Radio) 

 Wire transmission, 10, 20, 114, 465, 494- 



497, 504 

 Wolframite : 



density of -, 77 



resistivity of -, 657 



susceptibility of -, 310 



Wood: 



density of -, 79 



fossil -, 876 

 Woodbine sand, 835 



density of -, 83 

 Wulfenite, density of, 77 



X 



X rays, 871-873 



Young's modulus, 100, 438, 439, 443, 445, 

 446, 454, 457-461, 463, 464, 465, 467, 

 468, 474, 475, 482, 483, 485, 591, 

 849,927 



Z beam torsion balance, 193, 194 

 Zeiss galvanometer, 609, 893 

 Zeolitization of lavas, 51 

 Zinc, 73 



Zincblende (see Sphalerite) 

 Zincite, resistivity of, 659 

 Zinc sulfide (see Sphalerite) 

 Zircon, density of, 80 

 Zoellner suspension, 191, 192, 580 

 Zoisite, density of, 80 

 Zones, contact metamorphic (see Con- 

 tact metamorphism) 



