Archival objects in this container: Modern Copper Smelting by Edward D. Peters, 1887, 1895 The Practice of Copper Smelting by Edward D. Peters, 1911 Transactions of the American Institute of Mining and Metallurgical Engineers, 1933 Metallurgy of Copper by Joseph Newton and Curtis L. Wilson, 1942 The Porphyry Coppers by A.B. Parsons, 1933, 1957 The Copper Handbook vol. 10 compiled by Horace J. Stevens, 1911 Copper Manual vol. 3, 1904