WORLD. ;, : : , 



International map of the world, United States, ^eotidn. ,'The^ Srtit slieet of 

 this map, designated as sheet North K 19, or the Boston sheet, including 

 Rhode Island and portions of New York, Connecticut, Massachusetts, 

 New Hampshire, Maine, and Nova Scotia has been published by the 

 Geological Survey, which is mapping the United States portion. This 

 world map, undertaken by agreement among the leading nations, is be- 

 ing prepared on a scale of 1 to 1,000,000; that is, 1 linear inch on the 

 map represents 1,000,000 inches on the earth's surface, or nearly 16 miles. 

 The map is to consist of about 1,500 sheets, covering all the land areas 

 of the world, each sheet representing 4 degrees of latitude and 6 degrees 

 of longitude. The following sheets have been issued by foreign countries : 



North O-30, Scotland, The Highlands. 



North O-29, The Hebrides (Europe). 



North K-35, Istarabul (Constantinople). 



South H-34, Kenhardt (Africa). 



At the present rate of progress the United States portion will be finished 

 within eight or ten years and when completed will be about 16 feet in 

 width. The American sheets are sold by the Geological Survey at 40 

 cents a sheet, and the foreign sheets by Edward Stanford, 12-14 Long 

 Acre, W. C., London, England, at 2 shillings plus the postage. 



As a preliminary to the issuance of the completed color sections of the 

 map, the Geological Survey is printing, in black and white, State maps on 

 the scale of 1 to 500,000, being thus four times as large as the world map 

 of the same area. Already such maps have been finished and printed for 

 Vermont, Illinois, Indiana, Iowa, Minnesota, Mississippi, and Georgia, and 

 a dozen others are in process of publication. These are sold by the Sur- 

 vey at various prices according to the size of the map. 



Plans of map of the world, recent progress in execution of map of the world 

 on uniform scale of 1:1,000,000 (16 miles to the inch); by Albrecht 

 Penck. (In Report of 8th International Geographic Congress, 1904, pages 

 553 to 557. State Dept.) Cloth, $1.00. 85.6:904 



WYOMING [with plans of cities]. Scale 12 m.=l in. 1912. 28.8X33.8 in. 

 (General Land Oflice.) Paper, 25c. I 21.13 :W 99* 



INSETS : 



Cheyenne and vicinity, 3.1 X 3.5 in. 



Evanston. 3.1X2 in. 



Laramie. 3.1 X 2 in. 



Sheridan and vicinity. 3.1X3.9 in. 



See also, in this list, heading Platte, Department of. 



YELLOWSTONE AND MISSOURI RIVERS and their tributaries, Map of, ex- 

 plored 1859-1860. Scale 1:1,200,000. 27X41.6 in. (Engineer Dept., 

 map no. 29.) [From Geological report of exploration of Yellowstone and 

 Missouri rivers, by F. V. Hayden, 1856-60.] Paper, 23c. W 7.13: Ye 3 1 

 Same, revised and enlarged, 1876; 2 sheets. Scale 1:1,200,000. 31.4X20 

 and 31.6X20.4 in. (Engineer Dept., map no. 30.) Paper, the set 23c. 



W 7.13 : Ye 3 8 " 

 YELLOWSTONE NATIONAL PARK. 



Atlas to accompany Geology of Yellowstone National Park, pt. 2. 1899. 27 

 sheets, f ( Geological Monograph 32, pt. 2. ) Cloth, $3.75. 1 19.9 : 32 s 

 Map of reconnaissance from Carroll, Mont., to Yellowstone National Park 

 and return, July, Aug., and Sept., 1875. Scale 12 m.=l in. 24.7X18.9 in. 

 (Engineer Dept., map no. 5.) [From Report of reconnaissance from Car- 

 roll, Mont., to Yellowstone National Park, by William Ludlow.] Paper, 6c. 



W 7.13 : C 23 



Upper Geyser Basin. Scale 500 ft.=l in. 8.7X15.3 in. (Engineer Dept, 

 map no. 28.) [From Report of reconnaissance from Carroll, Mont, to 

 Yellowstone National Park, by William Ludlow.] Paper, 2c. 



W 7.13 : Up 6 



Yellowstone National Park, Big Horn Mountains, and adjacent territory. 

 Scale 12 m.=l in. 1881. 21.1X27.7 in. (Engineer Dept, map no. 31.) 

 Paper, 8c. W 7.13 : Ye 3" 



YELLOWSTONE PROJECT, Lower, Mont., N. Dak., surveyed in 1904; maps 

 7847, 8270, 8300. Scale 1 : 31,680, contour interval 10 ft. 1907. 3 sheets, 

 each 37.7X34.1 in. (Reclamation Service.) Paper, each 25c. 



1 27.7 : Y 3 1J 



17 



