SUBJECT INDEX 
I 
Ion-exchange chromatography, 698, 
889 
Ion-exchange materials, 890 
Ion-exchange resins, 109, 2h5, 
333, 4oh, 458, 747, 920, 1089 
Ion exchangers, 1096 
Ionic crystals, 1016, 1135 
Ionic potentials, 796 
Ionites 
synthesis, 48 
Ionization 
of the atmosphere, 597, 956 
of the ionosphere, 303 
potentials, 1126 
by radiation, 1123 
Ionization chambers, 644, 645 
electron concentration, 947 
ionization, 303 
Ionosphere, 121, 239, 240, 401, 
504, 585, 662, 665, 839, 954, 
956, 1049 
observations, 469 
physics, 947 
propagation, 13 
radio emission, 947 
Ionospheric layers, 857, 947 
Iridium isotopes, 377 
Iron. (See also "Ferrous metal- 
lurgy".) 
casting, 46, 222 
eorrosion in molten electrolytes, 
1089 
high-purity, 432 
hydrogen absorption, 824 
processing, 184 
wear, 184, 603 
Iron alloys 
chromium-, 254 
manganese-, 625 
molybdenum-, 266 
titanium-, 266 
Iron foundries 
automation, 188, 309, 974 
Iron industry 
economics, 81 
Iron meteorites 
cosmic radiation, 655 
Iron ores, 397, 46 
deposits, 385, 428 
preparation, 625, 701 
1 
Iron ores (Contin. ) 
reduction, 204, 223 
utilization, 368 
Irrigation, 68, 127, 152, 282, 
(Bile MOBO, ise2e’ 
economic effectiveness, 282 
remote areas, 487 
soil changes after, 502 
Irrigation systems, 454 
remote control, 308, 483 
Isobutylene, 325 
Isocyanates, 1003 
Isomerization, 450, 454 
Isoprene, 325 
preparation, 868 
synthesis, 336 
Isothermal transformations, 1133 
Isotopes, 459 
production, 474 
radiometric determination, 881 
separation, 167, 307, 747, 829 
Isotopic exchange, 384 
Isotopic space, 715 
J 
Jet pumps, 668 
Jiggling machines, 24 
Joining, metal. (See also 
"Bonding" and "Welding".) 167, 
431, 722, 886 
Journalism, 169, 186, 348, 557; 
593, 608, 683, 698, 754, 1089, 
1101 
K-state 
influence, 489 
Kalmyk language and literature, 
1007 
Kaolin products, 995 
Karachayev language, 543 
Karst formation, 650 
Kazakh Republic 
geology, 387 
soil maps, 502 
Kazakh language and literature, 
227, 228 
