204 
INDEX. 
Page. 
Geologic mapping, progress of 14 
Geological Exploration of Fortieth Parallel, 
area surveyed by 9 
Geological Survey, appropriation for 11 
creation of, date of 9 
functions of 10-11 
general results achieved by 14-16 
organization of ." 12-13 
Geological and Geographical Survey of the 
Territories, area surveyed by. . . 9 
Geology and paleontology, division of, orga- 
nization and work of 24-31 
Half-tone process, use of 109 
Havre, Mont., gaging station at, plate 
showing 82 
Hayden, F. V., area surveyed under direc- 
tion of 9 
Hayden Survey, area surveyed by 9 
Hydro-economics, division of, work of 88-90 
Hydrographic branch, work of 15, 74-93 
Hydrography, division of, work of 75-84 
Hydrology, division of, work of 84-88 
Igneous rocks, symbols representing, on 
geologic maps 100-101 
Illustrations, section of, work of 108-110 
Indexes, preparation of 95 
Inspection of surveying and mapping, sec- 
tion of, work of 70-71 
Instruments, section of, work of 18 
Irrigation projects, location of, map showing 80 
King, Clarence, area surveyed under direc- 
tion of 9 
King Survey, area surveyed by 9 
Lake Superior region, work in, value of 16 
Leadville, Colo., work at 16,31 
Letters, riling and reference of 17 
Library, work of * 21-24 
Mail, filing and reference of 17 
Manuscript, preparation of 94 
Maps, engraving of, method of 114 
See also Geologic maps; Topographic 
maps. 
Metamorphic rocks, symbols representing, 
on geologic maps 100-101 
Milk River, Mont., gaging station on, plate 
showing 82 
Mineral resources, division of mining and, 
organization and work of 48-50 
Mineral statistics, collection of 48-49 
Mineralogy, work in 51 
Mining and mineral resources, division of, 
organization and work of 48-50 
Miscellaneous division, work of 16 
Mississippi River, gaging station on, plate 
showing 82 
One HundredthMeridian, Geographical Sur- 
vey west of, area surveyed by. . 9 
Organization, units of 12-13 
Paleontologic section, work of 14 
Paleontology, division of geology and, or- 
ganization and work of 24-31 
Persons employed, number of 12, 13 
Petrographic laboratory, work of 14 
Photographic laboratory, equipment of 111 
Photography, section of, work of 110-1 13 
Page 
Physical laboratory, work of 14 
Physical and chemical researches, division 
of, work of 50-55 
Physics, section of, work of 53-55 
Powell, J. W., area surveyed under direc- 
tion of 9-10 
Powell Survey, area surveyed by 9-10 
Price current meter, description of 83-84 
view of, plate showing 84 
Primary control, condition of astronomic 
location and, map showing 70 
Primary traverse, office work on 70 
use of 66 
Printing. Sec Engraving and printing. 
Proof, treatment of 95 
Publication branch, work of 93-118 
Publications, exchange of 22-23 
summary of, by years 95-98 
Purchases, record of, method of keeping. . . 17 
Rating current meters, apparatus for, plate 
showing 84 
Reclamation service, work of 91-93 
Records. See Correspondence, records, sup- 
plies, and shipments. 
Reservoir sites, surveys for 77-78 
River stations, location of, maps showing.. 80,81 
See also Gaging stations. 
Rizer, H. C, letter of transmittal by 7 
Rock systems and series, table showing 29 
Rocks, symbols used on geologic maps to 
represent 100-101 
Rocky Mountain Region, Geographical and 
Geological Survey of, area sur- 
veyed by 9-10 
St. Elias Range, Alaska, features of 34-35 
Scale of topographic maps 56, 60 
Sedimentary rocks, symbols representing, 
on maps 100 
Shipments. See Correspondence, records, 
supplies, and shipments. 
Spirit leveling, work in 66-69 
Statistics of mineral production, collection 
of 48-19 
Stream measurements, location of, maps 
showing 80, 81 
work on 79-84 
Supplies. See Correspondence, records, sup- 
plies, and shipments. 
Surveys, classes of 56 
Telluride, Colo., geologic map and section 
of region near 30 
Territories, Geological and Geographical 
Survey of, area surveyed by 9 
Texts, editorial work on 94-98 
Topographic branch, organization and work 
of.. 55-74 
Topographic field parties, location of, map 
showing 62 
Topographic mapping, cooperation with 
States in 60 
Topographic maps, editorial work on 104-108 
features shown on 57-59 
method of engraving 114 
number printed 116 
number of and area represented by 14 
