\v\kman] CRUSHED — DEVONIAN. 89 
Darton (N. H.), geology of Scotts Bluff quadrangle, Nebraska (IF 88 
Juratrias rocks of New York City district GF 83, pp 6-10 
preliminary list of deep borings in United States WS 57; WS 61 
work in charge of Ann 22, i, pp 79-81 , 125; Ann 23, pp 39-41, 99 
Darwin (C. C), work in charge of Ann 22, i, pp 205-206; Ann 23, pp 191-194 
Darwin Range, California, geology of Bull 208, p 212 
Datolite, action of ammonium chloride on Bull 207, p 40 
Davis (A. P.), hydrography of the American isthmus Ann 22, iv, pp 507-630 
measurement of sediment held in suspension by streams, method of WS 47, 
pp 15-18 
water storage on Salt River, Arizona WS 73 
work in charge of Ann 22, i, p 125; Ann 23, p 99 
Day (D. T. ), mineral resources of United States in 1900, summary, etc MR 1900 
mineral resources of United States in 1901, summary, etc MR 1901 
work in charge of Ann 22, i, pp 108-124; Ann 23, i, p 32 
Dead River, Maine, flow of, measurement of WS 65, p 18 
Death Valley, California, borax deposits of Bull 213, pp 403-405 
Death Valley and Mohave Desert, borax deposit of, reconnaissance of Bull 200 
Deej) River, North Carolina, flow of, measurement of WS 48, 
pp 136-137; WS 65, pp 243-244; WS 75, p 55 
Deep River coal area, North Carolina Ann 22, in, pp 43-49 
Deer Creek limestone of Kansas, synonymy, character, and fauna of Bull 211, 
pp 47-48 
Deerfield River, Massachusetts, quality of water of WS 79, pp 76-77 
Deformation, researches in Ann 14, i, pp 234-235 
Degradation in Alaska, Copper River district Copper, pp 66-75 
in New York City district GF 83, p 11 
relief due to, in Idaho AYS 53, pp 61-70 
Del Rio clay of Texas GF 76, p 5 
Delaware; borings, deep, in, list of WS 57, p 21 
building stone from, statistics of... MR 1900, p 662 et seq; MR 1901, p 643 et seq 
clay deposits and industry of PP 11, pp 48, 80 
clay products of, statistics of MR 1900, 
p 695 et seq; MR 1901, p 674 et seq; PP 11, p 80 
corundum in Bull 180, p 80 
granite production of MR 1900, 
pp 662, 663, 664, 665, 667; MR 1901, pp 643, 644, 651, 652, 653 
maps, topographic, of. ( See Map, topographic, of Delaware. ) 
topographic work in Ann 22, i, pp 137, 138, 141, 149; Ann 23, p 134 
Delaware River, flow of, measurement of Ann 22, 
iv, pp 112-124; WS 47, p 80; WS 65, p 214; WS 75, pp 27-28 
quality of water of WS 79, pp 112-116 
Dennis limestone of Kansas, character, synonymy, and fauna of.. Bull 211, pp 36-37 
Deposition in Tennessee, Maynardville quadrangle GF 75, p 1 
in West Virginia, Charleston quadrangle GF 72, p 3 
Desert lands in United States Ann 22, iv, pp 48-49 
Desert-lands act of March 3, 1877, etc WS 70, pp 42-44 
Desert Mountains, Nevada, geology of Bull 208, pp 106-107, 160-161 
Desplaines River, Illinois, course and character of GF 81, p 1 
Devils Lake, North Dakota, fluctuations of, measurement of WS 66, p 14 
Devils River, Texas, flow of, measurement of WS 66, p 79; WS 75, p 61 
Devonian clays, distribution of, east of Mississippi River PP 11, p 51 
Devonian faunas of New York province, faunal dissection of Middle and 
Upper Bull 210, pp 42-96 
