SUBJECT INDEX 



691 



India, 48, 513 



Indian Waterways Experiment Station, 

 317 



Induced radioactivity in rocks, 85 



Industrial application of clay minerals, 

 471 



Industrial water wastes, 386 



Influence of aggregate on concrete, 459 



Initial dip, 11, 12 



Initial water content in clay, 30 



Inland navigation, 394 



Insolation, 254, 260 



Insoluble residues, 85, 622 



Insoluble rocks as foundation, 159, 161 



Instrumental logging, continuous, 567 



Insulation in permafrost areas, 260 



Insulation materials, 35 



Intercrystalline-type porosity, 624 



Interface potentials, 563 



Interfacial tensions, 592, 601 



Intergranular cement, 161 



Intergranular friction, 97, 143 



Intergranular permeability, 158, 160 



Intergranular pressures, 97, 108, 240 



Interior Coal Basins, 159 



Internal constitution of the earth, 75, 89 



Internal friction, 34, 97, 102, 136, 153, 

 154, 190, 232, 239 



International Conferences on Soil Me- 

 chanics, 111, 234, 243 



Interstate Canal, North Platte River, 371 



Interstitial surface, 600 



Interstitial water, 232 



Involutions in permafrost areas, 250, 256 



Ionic concentration, 16, 55 



Ionization chamber in well logging, 565 



Iowa, 66, 122, 382 



Iowa Institute of Hydraulic Research, 

 64, 66, 349, 359 



Iowa University, 64, 66, 349, 359 



Iridium, 488 



Iron, 17, 21, 266, 464, 470 



Iron carbonate, 518 



Iron content of waters, 508 



Iron ore, 37, 485, 491, 506-523 



Iron oxide, 58, 448, 512, 542 



Iron silicates, 510, 520 



Iron sulphides, 88, 509, 519 



Irrigation canals, 363-369, 391, 418 



Isopach maps, 576 



Isoperms, 592 



Isotropic media, 117, 127, 150 

 Itabirite, 521 

 Ithaca, N. Y., 475 



j function, 598 



Jacksonville, Fla., 294 



Jade, 489 



Japanese current, 19 



Jasper, 519 



Jeddito Wash, 424 



Jemez River, 411 



Jetties, 278, 297, 315, 319, 381, 659 



Joints, 135, 158, 237, 238, 619, 638 



in limestones, 619 



relation of, to foundations, 151 

 Joplin district, 529 

 Jurassic, 516 



K 



Kame terraces, 120 



Kanab Creek, 412 



Kanawha River, 330 



Kansas, 49, 382, 446, 616, 624, 625 



Kansas City, Mo., 319 



Kaolin, 56, 59, 130, 465-467, 476, 490 



Katie Reservoir, 599 



Keams Canyon gully, 429 



Keewatin lavas, 519 



Kennecott, Alaska, 529 



Kentucky, 330, 516, 528 



Kentucky-Illinois fluorspar, 528 



Kentucky River, 330 



Keokuk, Iowa, 328 



Kernite, 491 



Kerosene in permeability analysis, 592 



Kettle hole, 139 



Key horizons, 559, 561 



Keyhole Dam, Wyo., 451 



Kickapoo River, Wis., 393 



Kidney ores of iron, 518 



Kinsella Reservoir, 599 



Kitchen-middens, 251 



Klamath, Ore., 372, 374 



Klinkenberg effect, 590 



Kortes Dam, 445 



Kozeny-Carman equation, 600 



Kujukurihama, 652 



Kyanite, 475 



