
McDermott, Walter Losses in Gold Amalgamation: With Notes On the Concentration of Gold and Silver Ores (With Six Plates.)

McDermott, Walter Losses in Gold Amalgamation: With Notes On the Concentration of Gold and Silver Ores (With Six Plates.)

McDermott, Charles H. A History Of The Shoe And Leather Industries Of The United States Together With Historical And Biographical Notices; Volume 2