00907cam a22002771i 4500 gs 11000455 DLC 20260227111311.0 790529s1911 dcuf f001 0 eng gs 11000455 (OCoLC)5011928 DLC ICharE DLC premarc n-us-az w9x- QE75 .B9 no. 463 Marshall, R. B. (Robert Bradford), 1867-1949. Results of spirit leveling in Arizona, 1899-1909, inclusive / R.B. Marshall, chief geographer. Washington, Govt. Print. Off., 1911. 94 p. ; pl. ; 24 cm. U.S. Geological survey. Bulletin 463 Issued also as House doc. no. 1441, 61st Cong., 3d sess. Includes index. Arizona Altitudes. United States. Geological Survey. Bulletin ; 463. 25060 25060