01097cam a22003131 4500 gs 22000385 DLC 20260227111326.0 800403s1921 azu b s000 0 eng gs 22000385 (OCoLC)6161760 DLC TxCM OCoLC DLC premarc TN948.R3 B7 MN 1.3:B 85/117 azdocs Butler, G. M. (Gurdon Montague), 1881- Uranium and radium, by G. M. Butler and M. A. Allen. Tucson, Ariz., Pub. by the University, Arizona Bureau of Mines, 1921. 26 p. Arizona. Bureau of Mines. Bulletin no. 117. Mineral technology series no. 27 Cover title. Dated December 1, 1921, but includes material for 1922. At head of title: University of Arizona bulletin. Bibliography: p. 25-26. Uranium. Radium. Allen, Milton Arthur, 1890- joint author. University of Arizona. State Bureau of Mines. Bulletin ; 117. 26192 26192