Richards, Robert H. 1844-1945.
Textbook of ore dressing / Robert H. Richards and Charles E. Locke ; assisted by Reinhardt Schuhmann, jr. - 3d ed., completely rev. and rewritten. - New York : McGraw-Hill Book Company, 1940. - xiii, 608 p. : ill., fold.pl., diagrs. ; 24 cm.
Includes index.
40010540
Ore-dressing.
TN500 / .R53 1940
622.7 / RIT
Textbook of ore dressing / Robert H. Richards and Charles E. Locke ; assisted by Reinhardt Schuhmann, jr. - 3d ed., completely rev. and rewritten. - New York : McGraw-Hill Book Company, 1940. - xiii, 608 p. : ill., fold.pl., diagrs. ; 24 cm.
Includes index.
40010540
Ore-dressing.
TN500 / .R53 1940
622.7 / RIT