216 INDEX TO PUBLICATIONS OF IT. S. GEOL. SURVEY. [bull.215. 
Tonto Creek, Arizona, flow of, measurement of WS 66, pp 100-101; WS 75, p 178 
Tonto group of Grand Canyon district Ann 2, p 217; Ann 3, p 272 
T« »nto shale and sandstone of Nevada Bull 208, p 22 
T< >] >az, occurrence and statistics of MR 1900, pp 760, 777 
Topazolite, occurrence and statistics of MR 1901, pp 745, 770 
Topkok (Cape) region, Alaska, gold in N and N, pp 102-106 
Topographic map, uses of Ann 22, i, pp 27-28 
Topographic work, cooperation of States in Ann 22, i, pp 13-30 
report on Ann 22, i, pp 135-1 75; Ann 23, pp 121-164 
Topography. ( See State names. ) 
Toquima Range, Nevada, geology of Bull 208, pp 90-93 
T irdrillo series of Alaska Ann 22, in, p 528 
Tourmaline, occurrence and statistics of MR 1900, 
pp 761-762, 777; MR 1901, pp 748, 770 
Towaliga River, Georgia, flow of, measurement of Ann 22, 
iv, p 166; WS 48, pp 154-155; WS 65, pp 263-264; WS 75, p 70 
Townes (J. C.) , statement of Texas laws pertaining to irrigation . .WS 71, pp 125-127 
Toyabe Range, Nevada, geology of Bull 208, pp 93-97 
Toyah Creek, Texas, hydrographic data relating to WS 50, pp 361-362 
Trachytes of Alaska, Ketchikan district PP 1 , p 50 ■ 
Trails in Alaska, Copper River district Copper, pp 17-25 
Transported soils in Idaho, Nez Perce region WS 53, pp 48-51 
Trap dikes of Lake Champlain region Ann 15, pp 99-100 
Traverse and triangulation, primary, in 1899-1901, results of, in various 
States Ann 21, i, pp 227-375; Bull 181 
Traverse group of Michigan Ann 22, in, p 644 
Travis Peak formation in Texas GF 76, p 3 
Trenton group of Illinois GF 81, p 2 
Trenton limestone of Iowa, northeastern Ann 11, i, p 234 
of New York Bull 3, p 9 
Triangles, rules for solution of Bull 214, pp 9, 12-13 
Triangulation in 1900, 1901, and 1902, reports on Ann 22, 
i, pp 139-146; Ann 23, pp 126-131 
in Pennsylvania, Masontown and Uniontown quadrangles GF 82, p 1 
in various States in 1900, 1901, and 1902, results of Bull 181; Bull 201 
Triangulation and primary traverse, results of, fiscal year 1901-2 Bull 201 
Triassic coal field of Atlantic coast Ann 22, in, pp 25-53 
Triassic coal fields of United States Ann 22, in, p 17 
Triassic rocks of Alaska, Copper River district Copper, pp 33, 46-47 
of Oregon, Blue Mountains Ann 22, 1 1, pp 579-582 
of Utah Bull 8, p 43 
Trinidad, asphaltum production of.. MR 1900, pp 657-659, 660; MR 1901, pp 637-640 
Trinidad sandstone of Colorado GF 71, pp 1, 3 
Trinity division of Texas GF 76, p 3 
Trinity sand of Arkansas and Texas Ann 22, in, p 697 
<>f Indian Territory GF 79, p 5 
Truckee Basin, flow of streams in, measurement of Ann 22, 
iv, pp 403-405; WS 51, pp 402-405, WS 66, pp 111- 
114; WS 68, pp 18-33; WS 75, pp 184-185, 186 
forest conditions in... PP 8, pp 173-183 
water storage in WS 6S 
Truckee formation or group of Nevada Bull 208, p 22 
of Nevada and Idaho, age of A nn 3, p 416 
of Oregon Bull 18, pp 10, 11, 12 
