WAKMAN.] SOIL SPAIN. 203 
South Platte River, flow of? measurement of Ann 22, iv, pp 318-320, 
327; WS 49, pp 278-283; WS 74, pp 23-26; WS 75, pp 127, 130 
gagings in basin of, miscellaneous WS 74, pp 63-64 
hydrography of basin of Ann 22, iv, pp 314-317; WS 49, pp 278-283 
seepage on, computations of WS 50, pp 300-303 
South Dakota; Big Sioux River, flow of, measurement of WS 49, 
pp 270-271; WS 66, pp 24-25; WS 75, p 124 
Big Sioux River, hydrographic reconnaissance of basin of. .Ann 22, iv, pp 298-306 
Black Hills, divisions and features of GF 85, p 1 
borings, deep, in, list of WS 61 , pp 44-49 
building stone in Oelrichs quadrangle GF 85, p 6 
statistics of MR 1900, p 662 et seq; MR 1901, p 641 et seq 
cement from, statistics of MR 1900, p 737 ; MR 1901 , pp 721 , 722 
Cheyenne River and tributaries, flow of, measurement of WS 49, pp 271-272 
coal in, production, etc., of Ann 22, in, p 13 
coal fields of, production etc. , of Ann 22, in, p 13 
summary of knowledge of Ann 22, in, pp 458-459 
copper from, statistics of MR 1901, p 61 
geography of Oelrichs quadrangle GF 85, p 1 
geologic and paleontologic work in Ann 22, 
i, pp 79-80; Ann 23, pp 40, 48; Bull 213, p 27 
gold and silver from, statistics of MR 1900, pp 109-113; MR 1901, p 119 et seq 
granite production of MR 1900, pp 662, 
663, 664, 665, 668; MR 1901, pp 644, 645, 651, 652, 653, 654 
gypsum in Oelrichs quadrangle GF 85, p 6 
statistics of MR 1900, p 830; MR 1901, p 847 
Kampeska, Lake, reconnaissance of, for water storage Ann 22, iv, pp 300-303 
limestone production of MR 1900, 
pp 662, 685, 686, 687; MR 1901, pp (144, 645, 667, 668, 669, 670 
maps, geologic and topographic, of. (See Map.) 
mica production of MR 1900, pp 850, 854-855; MR 1901, p 877 
mineral springs of MR 1900, pp 901, 903; MR 1901, p 964 
natural gas in, statistics of MR 1900, 
pp 634, 635, 637, 638, 650; MR 1901, pp til 7, HI 9, 620, 621 
Oelrichs quadrangle, geology of G F 85 
Pelican, Lake, reconnaissance of, for water storage Ann 22, iv, pp 300-303 
Poinsett, Lake, reconnaissance of, for water storage Ann 22, iv, pp 303-305 
sandstone production of MR 1900, 
pp 662, 670, 671, 672, 675; MR 1901, pp 644, 645, 656, 657, 658, 659 
soils of Oelrichs quadrangle GF 85, p 5 
topographic work in. .Ann 22, i, pp 137, 139, 143, 15(5-157, 162, 173; Ann 23, p 143 
topography of Black Hills Ann 21, in, pp 174-177 
of Black Hills Forest Reserve Ann 19, v, pp. 68-70 
of Black Hills region, southern Ann 21, iv, pp 498-502 
underground water of Oelrichs quadrangle GF 85, p 5 
jpain; arsenic production of MR 1901, p 257 
asphaltum production of MR 1900, p 660; MR 1901, p 640 
coal production of MR 1900, pp 315, 320; MR 1901, pp 311, 316 
copper from, statistics of ..MR 1900, pp 183, 185, 186-187; MR 1901, pp 193, 195 
iron and steel production of MR 1901, p 114 
lead from, statistics of MR 1900, pp 209, 210 
manganese ore from, statistics of MR 1900, 
pp 134-135, 140; MR 1901, pp 149, 155 
ocher production of MR 1901, p 906 
