00796cam a22002411 4500 gs 13000799 DLC 20260227111315.0 790611s1913 dcua f000 0 eng gs 13000799 (OCoLC)5053923 DLC NFredU OCoLC DLC n-us-az QE75 .P9 no. 76 QE86.S4 R6 Robinson, Henry Hollister, 1873-1925. The San Franciscan volcanic field, Arizona / by Henry Hollister Robinson. Washington, Govt. Print. Off., 1913. 213 p. : ill., xiv pl., fold. maps, diagrs., 30 cm. Geological Survey (U.S.). Professional paper ; 76. Some plates printed on both sides of leaf. Geology Arizona. 25310 25310