706 



SUBJECT INDEX 



Undulations on continental shelf, 23 

 Uniformity coefficient, 10 

 Union County, 111., 467 

 Unit weights, 102, 645 

 United States, Bureau of Mines, 486, 

 537 

 Bureau of Public Roads, 144 

 Bureau of Reclamation, 131, 364, 463 

 Census, 419 



Coast and Geodetic Survey, 92, 662 

 Congress, 400 

 Corps of Engineers, 300 

 Department of Agriculture, 379 

 Department of the Army, 147, 154, 333 

 Department of the Interior, 361 

 Forest Service, 376 



Geological Survey, 92, 93, 113, 115, 

 117, 120, 431, 537, 547, 549, 637, 

 662 

 Hydrographic Office, 661, 662 

 Navy Department, 268, 269, 662 

 Soil Conservation Service, 409 

 University, of Arizona, 409 

 of California, 62 



Division of War Research, 660 

 of Texas, 112 

 of Wisconsin, 506 



Alumni Research Foundation, 3 

 Upheaval of concrete spillways, 184 

 Uplands soil, 54 

 Uplift pressure, 158, 224 

 Upwelling, 19 

 Uranium, 491, 561 

 Urbana, 111., 464 

 Utah, 27, 120, 382, 421, 529 

 Utilidors in permafrost areas, 261 



Valley, 210 



Valley fill, 84 



Valley flats, ground water in, 120 



Value of 1946 domestic mineral produc- 

 tion classified by rock type, 486 



Vanadium, 491 



Variability in soils, 107 



Varved clay, 14, 203, 236 



Vegetation, 262, 263, 545 



in stream control, 319, 399, 432 

 relation of, to ore minerals, 545 



Vegetative recovery, 422 



Vein deposits, 485, 486, 524-526 

 Velocity, distribution of, in streams, 69 



of sound in rocks, 78, 79 

 in water, 657 



settling, 8 

 Ventilation of water, 21 

 Ventnor, N. J., 314 

 Vermiculite, 56, 465 

 Vermilion County, 111., 467 

 Vermillion, Minn., 514 

 Vibrations, 109, 14S 



effect of, on stability, 236 

 Vicksburg, Miss., 210, 300, 645 

 Viking formation, 599 

 Virgin River, Nev., 412 

 Visalia, Calif., 176 

 Viscosity, 588 

 Vitrification, 471 

 Void ratio, 105, 153 

 Voids, 96, 104, 195, 600, 618 

 Volcanic ash, 7, 9, 15, 16, 454, 638, 643 

 Volcanic extrusives, 113, 129, 237, 642 

 Volcanic mud flow, 230 

 Volcanism, 15 

 Volcanology, 90 

 Volga River, 234, 235 

 Volume change of aggregate, 461 

 von Karman's logarithmic equations, 69 

 Vug holes, 623 



W 



Wabana hematite, 516, 517 

 Walker River, Nev., 412 

 Walkie-Talkie radio in reservoir studies, 



356 

 Wall rock, 537 

 Wappapello Dam, 185 

 Warrior River, Ala., 333 

 Wasatch Mountains, 337, 341 

 Wash borings, 171, 177 

 Wash load, 63, 68 



Washburn-Bunting core analysis, 587 

 Washington, D. C, 64, 181, 293, 412, 



452, 537, 635 

 Washington harbor, 296 

 Washington University, 127 

 Water, 8, 100 



dissolved substances in, as indicators 

 of ore, 546 



flooding of oil reservoirs, 604 



