«6 



No. 11. Heinrich Ries. The clays of the United States east 

 of the Mississipi River. 1903. 



No. 12. Frederick Leslie Ran so me. Geology of the Globe 

 copper district, Arizona. 1903. 



No. 13. W. G. Tight. Drainage modifications in southeastern 

 Ohio and adjacent parts of West Virginia and Kentucky. 

 1903. 



No. 14. Henry S.tephens Washington. Chemical analyses 

 of igneous rocks published from 1884 to 1900 with a cri- 

 tical discussion of the character and use of analyses. 1903. 



No. 15. Walter G. Mendenhall and Frank C. Schrader. 

 The mineral resources of the Mount Wrangell district, 

 Alaska. 1903. 



No. 16. George H. Gir ty. The carboniferous formations and 

 faunas of Colorado. 1903. 



No. 17. Nelson Horatio Darton. Preliminary report on the 

 geology and water resources of Nebraska west oftheone 

 hundred and third meridian. 1903. 



No. 18. Joseph Paxson Iddings. Chemical composition of 

 igneous rocks expressed by means of diagrams with re- 

 ference to rock classification on a qnantitative chemico- 

 mineralogical basis. 1903. 



No. 19. Contributions to the geology of Washington. Geology 

 and physiography of Central Washington. By George 

 O ti s Smith. Physiography and deformation of the We- 

 natchee-Chelan District, Cascade Range. By B a i 1 e y 

 W i His. 1903. 



No. 20. Frank Charles Schrader. A reconnaissance in 

 Northern Alaska across the Rocky Mountains, along 

 Koyukuk, John, Anaktuvuk, and Colville Rivers, and the 

 arctic coast to Cape Lisburne, in 1901. With notes by 

 W. J. Peters. 1904. 



No. 21. Frederick Leslie Ransome. The geology and ore 

 deposits of the Bisbee quadrangle, Arizona. 1904. 



No. 22. John B. Leiberg, Theodore F. Rixon, and Arthur 

 Dodwell. Forest conditions in the San Francisco 

 Mountains Forest Reserve, Arizona. With an introduction 

 by F. G. Plum me r. 1904. 



No. 23. Forest conditions in the Black Mesa Forest Reserve, 

 Arizona. Prepared by F. G. Plummer from notes by 

 Theodore F. Rixon and Arthur Dodwell. 1904. 



No. 28. Henry Stephens Washington. The superior ana- 

 lyses of igneous rocks from Roth's Tabellen, 1869 to 1884, 

 arranged according to the qnantitative system of classi- 

 fication. 1904. 

 Report to the Secretary of the Interior, 24. Annual, 1902—3. 

 Wash. 1903. 4. 



Resources, Mineral, of the United States. Calendar year 1902. 

 Wash. 1904. 8. 



