SUBJECT INDEX 



689 



Gouge, relation of, to foundation, 151,161 

 Gradation of aggregates, 441, 445, 446, 



460 

 Gradient, effect of, on erosion, 416 

 Grading curve, 10, 477 

 Grain-fineness number, 477 

 Grain roundness, use of, in correlation, 



571 

 Grain size, 30, 66, 69, 115, 445, 571, 605, 

 652 



classification of, 173 



distribution of, 99, 605; see also Size 

 distribution 



effect of, on ground water, 118 

 on permeability, 116, 605 

 on porosity, 610 



of wind-blown sand, 452 

 Grand Canyon, 382, 392, 412 

 Grand Coulee Dam, 265 

 Granite, 183, 184, 190, 444, 498, 648 

 Granite soils, 47 

 Graphic logs, 570 

 Grassland soil, 53, 54 

 Gravel, 13, 31, 127, 173, 188, 194, 213, 

 219-223, 232, 239, 437-463, 489, 

 561, 640, 646 



for drainage, 187 



in aggregates, 440 



in Lower Mississippi Valley, 211 



marine, 455 

 Gravitational constant in permeability 



equations, 602 

 Gravity, as agent in erosion, 7, 14 



effect of, on landslides, 232 



relation of, to geophysics, 79 

 Gravity basins, 376 

 Gravity dam, 149, 160 

 Gravity differentiation in mineral grain 



analysis, 622 

 Gravity drainage production in oil fields, 



585 

 Gravity spillway, 183 

 Gravitymeter, use of, 87 

 Grays Harbor, County Wash., 385 

 Graywacke, 33, 638 

 Great Plains, soils of, 49 

 Great Salt Plains Dam, 189 

 Green compression strength, 469, 479 

 Green permeability, 479 

 Green River, 382, 412 



oil shale of, 29 



Green sands, 233 



Green strength, 468 



Greenalite, 510, 520 



Greenville, Miss., 293 



Grenada, Miss., 220 



Grinding pebbles and sand, 489 



Grindstones, 490 



Grit, 204 



Groins (breakwaters), 276-290, 659 



Gros Ventre River, Wyo., 238 



Ground, 41, 93, 127, 147, 169 



in tunnels, 194-203 

 Ground-ice mounds, 263 

 Ground-ice wedges, 250 

 Ground sills, 319 



Ground till, 13; see also Glacial sediments 

 Ground water, 14, 35, 47, 90, 113-123, 

 224, 472, 513, 547, 652 



effect of, on soil, 47 



in permafrost areas, 255 

 Ground-water table, 108, 141, 619 

 Grout, 140, 150, 158, 166, 197, 242 

 Grundy County, 111., 467, 469 

 Guadalcanal Island, 650 

 Guam, 642, 649 

 Gulf, of Kara Bugaz, 21 



of Mexico, 17, 22, 51, 218, 325, 611 

 Gulf Coast area, average porosity of, 607 

 Gulf Coast geosyncline, 211 

 Gulf Stream, 19 

 Gulfport, Miss., 282 

 Gullies, 36, 263, 345, 369, 383, 400, 407- 



436 

 Gunpowder Falls, Md., 382 

 Gypsum, 16, 21, 31, 138, 159, 167, 233, 

 448, 491, 492, 623, 638 



H 



Halloysite, 465 

 Halos, dispersion, 539 

 Harbors, 291-299, 300-318 

 Hardness, of aggregate, 459 



of ice, 7 



of water, 265, 266 

 Harrison County, Miss., 282 

 Hartselle formation, 481 

 Harvard University, 111, 193, 234 

 Hawaii, 113, 241 

 Hawkins Reservoir, 599 

 Haydite, use of, in model structure, 302 



