RECLAMATION PROJECTS. United States reclamation projects, gauging 

 stations, and river surveys; map 7549. Scale 100 m.=0.9 in. 1906. 

 17.5X28.4 in. (Reclamation Service.) Paper, lOc. 1 19.17 s :R 24 



See also, in this list, headings Belle Fourche project Klamath projects 

 North Platte project Salt River project Shoshone project Uncom- 

 pahgre Valley project Yellowstone project. 



RIVER SURVEYS. See, in this list, heading Reclamation projects. 



SACRAMENTO RIVER. Reports of examination and survey of Sacramento 

 River from its mouth to Feather River. 1908. 19 pages, 26 maps. (60th 

 Cong., 2d sess., H. Doc. 1123.) Paper, $1.35; buckram, $1.50. 



SALT RIVER PROJECT, Salt River Valley, Ariz., topographic and irrigation 

 map surveyed in 1902-3, sheet 1; map 4711. Scale 1 m. 2 in., contour 

 interval 5 ft. 1904. 29.3X50.4 in. (Reclamation Service.) Paper, 25c. 



1 19.17 5 : Sa 3 1 



Same, sheet 2; map 4896. Scale 1^31,680, contour interval 5 ft. 1904. 

 49X31.9 in. Paper, 25c. 1 19.17 5 : Sa 3* 



Same, sheets 3 and 4 ; maps 8667, 8915. Scale 1 : 31,680, contour intervals 

 5, 10, and 50 ft. 1907. 33.9X48.2 and 33.9X25 in. Each, paper, 25c. 



I 27.7 : S:i 3 1 ' 2 

 SAN JUAN MINING REGION. See, in this list, heading Colorado. 



SHOSHONE PROJECT, WYO., topographic survey irrigable lands, surveyed in 

 1903, contour interval 20 ft. ; with inset, Shoshone reservoir site, contour 

 interval 10 ft., sheet 1; map 4900. Scale 1:31,680. 1904. 47.1X33.7 

 and 8.6X13.4 in. (Reclamation Service.) Paper, 25c. I19.17 8 : Sh8 



SNOW. See, in this list, heading Weather maps. 

 SOUTH AMERICA. See, in this list, heading Forests. 



SOUTH DAKOTA. Scale 12 m.=l in. 1910. 26X37.5 in. (General Land 

 Office.) Paper, 25c. 1 21.13: So 8d 2 



See also, in this list, headings Dakota, Department of Dakota Territory. 

 SPLENETIC FEVER. See Texas fever. 



STATISTICAL ATLAS OF UNITED STATES. See, in this list, heading 

 United States. 



SURVEYING. See. in this list, heading Forests. 



TEXAS FEVER. Quarantine for Texas fever of cattle [map of United States 

 showing area quarantined]. 1913. 21X33.3 in. (Animal Industry 

 Bureau.) Paper, 15c. A 4.6: 913 



TOPOGRAPHIC MAPS. 



Interpretation of topographic maps; by R. D. Salisbury and W. W. At- 

 wood. 1908. 84 pages, illus. 151 maps, 4 (Geological Professional 

 paper 60.) Paper $2.75. 1 19.16 : 60 



Topographic atlas. The Geological Survey is making a topographic map 

 of the United States. The sheets of which it is composed are projected 

 without reference to political divisions, and are designated by some promi- 

 nent town or natural feature found on them. Three scales are ordinarily- 

 used, 1:62,500, 1:125,000, and 1:250,000. These correspond, approxi- 

 mately, to 1 mile, 2 miles, and 4 miles to 1 linear inch, covering, respec- 

 tively, average areas of 230, 920, and 3,700 square miles. For some areas 

 of particular importance special large-scale maps are published. The 

 size, unless otherwise given, is about 17.5 inches in height by 11.5 to 16 

 inches in width, exclusive of the margin, the width varying with the lati- 

 tude. A description of the topographic map is printed on the reverse of 

 each sheet. 



Nearly two-fifths of the area of the country, excluding outlying possessions, 

 has been mapped, every State being represented. Massachusetts, Connecti- 

 cut, Rhode Island, New Jersey, and the District of Columbia are com- 

 pletely mapped. Sheets of the regular size are sold by the Survey at 

 lOc. each; but in lots of 50 or more copies, whether of the same sheet or 

 of different sheets, the price is 6c. each. In no case can orders be filled 

 at the wholesale rate unless the sum remitted solely for topographic 

 maps amounts to at least $3.00. 



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