The chloride volatilization process of ore treatment / by Thomas Varley, E.P. Barrett, C.C. Stevenson and Robert H. Bradford ; with an introductory chapter by Stuart Croasdale
At head of title: ... Department of the interior. Albert B. Fall, secretary. Bureau of mines. H. Foster Bain, director. Most plates printed on both sides. "First edition, January, 1923." cf. verso of t.-p. "Abstract of Ben Howe's work": p. 24-26. "Plant at Fairbank, Ariz., by Walter A. Schmidt": p. 29-30.
Bibliography Note
"Bibliography of Howe's work": pages 26-27. "Partial list of patents relating to the chloride volatilization process": pages 93-95. "Publications on the volatilization of ores": page 96.