TO 

 JOHN CASPAR BRANNER Ph.D., 



The inspiration of whose teaching is no less great than his contribution to science. 



This New 1950 Edition 

 of DE RE METALLICA is a complete 

 and unchanged reprint of the transla- 

 tion published byThe Mining Magazine, 

 London, in igia.Ithasbeen made avail- 

 able through the kind permission of Honor- 

 able Herbert C. Hoover and Mr. Edgar 

 Rickard, Author and Publisher, respec- 

 tively, of the original volume. 



International Standard Book Number: 0-486-60006-S 

 Library of Congress Catalog Card Number: Ail-8994 



Manufactured in the United States of America 



Dover Publications, Inc. 

 180 Varick Street 

 New York 14, N. Y. 



