92 INDEX. 
Bore explorations for potash 2, 13,18, 56-58, 63,64 
Borings: 
Carson Sink, potash studies 2, 18, 63, 64 
Death Valley, log of Geological Survey 46 
Pixie Valley, analyses 54-56 
Railroad Valley, Nev., log of potash drill 56-58 
Searles Lake, analyses of samples 48, 49, 87, 89 
Silver Peak Marsh, analyses 41, 42 
Brines, analyses 41, 43, 47, 51, 52, 53, 54-56, 85-86 
Brockington, B. K., citation 44, 46 
Calcareous deposits, shores of lakes in Great Basin 65 
California: 
Borax deposits 33, 34,46 
Climatic records, precipitation, etc., tables " 71-73 
Great Basin region, geochemical conditions 1-14 
Gypsum deposits f. 66 
Nitrate deposits, location 32 
Rivers, analyses, etc 8, 28, 29, 31 , 32, 81 
Salt beds 7,43,44-15,46,48,52 
Waters , analyses .• 24, 77, 78, 86 
Cameron, citation 21 
Campbell, citation 34 
Carson Basin, descriptive notes 1, 3, 1, 5, 9, 13, 19 
Carson Desert. (See Carson Basin; Carson Sink.) 
Carson Lake, descriptive notes 9, 60, 61 , 62, 63 
Carson River, descriptive notes 1, 8, 9, 10, 29, 63, 64, 74 
Carson Sink area, bore explorations 2, 18, 63, 64 
Cat low Valley Basin, note 8 
Chatard, T. M., citations on analysis of hot spring water, etc 19, 49, 51, 70 
Chewaucan Marsh, note 8 
Chlorides, high content of some lakes 30 
Christmas Lake Valley, ground water 12 
Clarke: 
Citation on decomposition of rocks 15 
Citations on analyses of hot-spring waters, etc 16, 17, 19, 24, 31, 52 
Climatology, Great B'asin region, factors controlling, etc 3-4, 71, 72 
Cloudbursts, cause of erosion in Great Basin 3-4, 21 
Columbus Marsh, location, characteristics, mud analyses, etc 53-54, 64 
Columbus Valley, notes 1, 8, 33, 39 
Cones of extinct volcanoes found in Great Basin region : 19-20,41 
Cooperation, potash investigations 2, 3 
Cottonwood Springs, gypsum occurrence 7 
Craters, extinct, as sources of saline deposits 19-20 
Crusts, alkali, occurrence and composition 33, 36, 60, 82. 83, 85 
Cullen, J. A., citations on hot springs, analyses, etc 19,23,36,43,78,85 
Danby Basin, descriptive notes 1, 32 
De Groot, citation 48 
Death Valley: 
Basin, descriptive notes 1,4, 12, 19-20, 24, 32, 38, 39, 53, 85, 86 
Borings, Geological Survey 46 
Brines, analyses, tables , 78, 85-86 
Chemical data 45-47,85.86 
Location, description, and analyses of brines, etc 44-47, 85, 86 
Desert basin, structural development 37-39, 67 
Desert basins, formation, typical cases, description, etc 39-60,66-67 
Desert wells, water measurement 12 
Desiccation of lake waters, formation of desert basin 40, 42, 47, 49, 51, 52, 56, 58, 66, 67 
Dinsmore, S. C, citations on analysis of hot-spring waters, etc 19,24,77 
Dixie Valley: 
Basin, descriptive notes 8, 39 
Location, formation, analyses from borings, etc 54-56 
Dolbear, citations, ground water, etc 12, 33, 48, 53 
Dole, citations, geology of Great Basin, etc 19,31,39,40,41,42 
Efflorescences, alkali, description, occurrence, analyses, etc 33, 36, 66-67, 82, 83, 85 
Erosion, water and wind, in Great Basin 21 
Evaporation, Great Basin region 10-12 
Fallon: 
Area, descriptive notes 10, 25, 27 
Soils, salines, nature of 27 
Fish Lake Vallev, descriptive notes 1, 39, 42 
Fourmile Flat. '(See Sand Spring Flat.) 
Free, E. E.. citations 1-3, 36, 49, 52, 53, 54, 75, S6, 88 
Furnace Creek, notes 6 > 78 
Gale, citations 32,35,46,47,54,64 
Geochemical conditions, Great Basin region 1-14 
Geological Survey: 
Borings, Carson Sink 2, 18, 63, 64 
Borings, Death Valley 46 
Cooperation with Soils Bureau in potash studies 2, 3 
Ground-water studies. Great Basin 8, 12, 13 
Potash studies in Carson Sink bore 2, 13, 18, 63 
Geology. Great Basin region, rocks, lakes, etc 4-8 
